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visible light are also called "lenses", such as microwave lenses, electron lenses, acoustic lenses, or explosive lenses. Lenses are used in various imaging...

Look up lens in Wiktionary, the free dictionary. A lens is an optical element that converges or diverges light. Lens may also refer to: Lens (anatomy)...

Contact lenses, or simply contacts, are thin lenses placed directly on the surface of the eyes. Contact lenses are ocular prosthetic devices used by over...

A Fresnel lens (/ˈfreɪnɛl, -nəl/ FRAY-nel, -⁠nəl; /ˈfrɛnɛl, -əl/ FREN-el, -⁠əl; or /freɪˈnɛl/ fray-NEL) is a type of composite compact lens which reduces...

Racing Club de Lens (French pronunciation: [ʁasiŋ klœb də lɑ̃s]), commonly referred to as RC Lens or simply as Lens, is a French professional football...

Google Lens is an image recognition technology developed by Google, designed to bring up relevant information related to objects it identifies using visual...

The lentil (Vicia lens or Lens culinaris) is an annual legume grown for its lens-shaped edible seeds or pulses, also called lentils. It is about 40 cm...

The lens, or crystalline lens, is a transparent biconvex structure in most land vertebrate eyes. Relatively long, thin fiber cells make up the majority...

A lens flare is a visual artifact caused by light scattering, or flaring, in a lens system. This can happen through light scattered by the imaging mechanism...

Lens is a Dutch patronymic surname. The given name Lens is a now rare short form of Laurens. Notable people with the surname include: Andries Cornelis...

A corrective lens is a transmissive optical device that is worn on the eye to improve visual perception. The most common use is to treat refractive errors:...

In imaging optics, a field lens is a positive-powered lens or group of lenses that comes after the objective lens and before the image plane or the eyepiece...

A telephoto lens, also known as telelens, is a specific type of a long-focus lens used in photography and cinematography, in which the physical length...

fisheye lens is an ultra wide-angle lens that produces strong visual distortion intended to create a wide panoramic or hemispherical image. Fisheye lenses achieve...

the lens renders out-of-focus points of light". Differences in lens aberrations and aperture shape cause very different bokeh effects. Some lens designs...

A camera lens, photographic lens or photographic objective is an optical lens or assembly of lenses (compound lens) used in conjunction with a camera...

A toric lens is a lens with different optical power and focal length in two orientations perpendicular to each other. One of the lens surfaces is shaped...

cylindrical lens is a lens which focuses light into a line instead of a point as a spherical lens would. The curved face or faces of a cylindrical lens are sections...

An intraocular lens (IOL) is a lens implanted in the eye usually as part of a treatment for cataracts or for correcting other vision problems such as near-sightedness...

lens or asphere (often labeled ASPH on eyepieces) is a lens whose surface profiles are not portions of a sphere or cylinder. In photography, a lens assembly...

A flat lens is a lens whose flat shape allows it to provide distortion-free imaging, potentially with arbitrarily-large apertures. The term is also used...

A telecentric lens is a special type of optical lens (often an objective lens or a camera lens) that has its entrance or exit pupil, or both, at infinity...

Decision Lens is online decision-making software that is based on multi-criteria decision making. Decision Lens implements the Analytic Hierarchy Process...

Amelie Lens (Flemish: [aːmeːˈli ˈlɛns], French: [ameli lɑ̃s]; born 31 May 1990) is a Belgian electronic music DJ, record producer, and owner of the record...

causes a distortion in the shape of the lens because the lens can only be supported by the edges. Making the lens thick enough to prevent deformation would...

The Morgan Lens is a sterile plastic device resembling a contact lens connected to tubing that fits over the eye and allows copious irrigation of the eye...

A gravitational lens is matter, such as a cluster of galaxies or a point particle, in sufficient quantity and density to bend light noticeably from a distant...

lenses, progressive addition lenses (PAL), varifocal lenses, progressive power lenses, graduated prescription lenses, or progressive spectacle lenses...

Sony E-mount Lens) lenses for Sony E-mount cameras since 2010. They are also compatible with Hasselblad E-mount cameras. Some of the lenses introduced into...

The Lens (formerly Patent Lens) is a free, searchable online database of patents and scholarly literature, provided by Cambia, a non-profit organisation...

radii of curvature of the lens surfaces. Lenses whose thickness is not negligible are sometimes called thick lenses. The thin lens approximation ignores optical...

A photochromic lens is an optical lens that darkens on exposure to light of sufficiently high frequency, most commonly ultraviolet (UV) radiation. In...

E-mount ZA-lenses are fully dedicated Sony E-mount autofocus lenses. Lenses carrying the E designation cover the APS-C format, while lenses designated...

The Petzval objective, or Petzval lens, is the first photographic portrait objective lens (with a 160 mm focal length) in the history of photography....

A scleral lens, also known as a scleral contact lens, is a large contact lens that rests on the sclera and creates a tear-filled vault over the cornea...

videography, a lens adapter is a device that enables the use of camera and lens combinations from otherwise incompatible systems. The most simple lens adapter...

A lens space is an example of a topological space, considered in mathematics. The term often refers to a specific class of 3-manifolds, but in general...

In hydrology, a lens, also called freshwater lens or Ghyben-Herzberg lens, is a convex layer of fresh groundwater that floats above the denser saltwater...

optics, a simple lens or singlet lens is a lens consisting of a single simple element. Typical examples include a magnifying glass or a lens in a pair of...

Jeremain Marciano Lens (born 24 November 1987) is a Dutch former professional footballer. He was a versatile attacking player, known for his pace and stamina...

Lens speed is the maximum aperture diameter, or minimum f-number, of a photographic lens. A lens with a larger than average maximum aperture (that is,...

Amusing Lenses (ニコン おもしろレンズ工房) are a limited production set of four toy lenses for the Nikon F mount sold exclusively in Japan. The Amusing Lenses were designed...

circle contact lens, also known as a big eye contact lens and circle lens, is a cosmetic (non-corrective and decorative) contact lens that makes the eye's...

A lens mount is an interface – mechanical and often also electrical – between a photographic camera body and a lens. It is a feature of camera systems...

offering unique capabilities. Single-lens reflex (SLR) cameras provide real-time, exact imaging through the lens. Large-format and medium-format cameras...

The Barlow lens, named after the English physicist and mathematician Peter Barlow (1776–1862), is an optical tube with diverging lens elements that, used...

opposed to a fixed-focal-length (FFL) lens (prime lens). A true zoom lens or optical zoom lens is a type of parfocal lens, one that maintains focus when its...

eye's lens from its normal location. A partial dislocation of a lens is termed lens subluxation or subluxated lens; a complete dislocation of a lens is termed...

A magnifying glass is a convex lens—usually mounted in a frame with a handle—that is used to produce a magnified image of an object. A magnifying glass...

A Luneburg lens (original German Lüneburg-Linse) is a spherically symmetric gradient-index lens. A typical Luneburg lens's refractive index n decreases...

the removal of the natural lens of the eye that has developed a cataract, an opaque or cloudy area. The eye's natural lens is usually replaced with an...

An achromatic lens or achromat is a lens that is designed to limit the effects of chromatic and spherical aberration. Achromatic lenses are corrected...

The Nimrud lens, also called Layard lens, is an 8th-century BC piece of rock crystal which was unearthed in 1850 by Austen Henry Layard at the Assyrian...

Lensing is a surname. Notable people with the surname include: Kees Lensing (born 1978), Namibian rugby union player Sascha Lensing (born 1973), German...

lens hood or lens shade is a device used on the front end of a lens to block the Sun or other light source(s) to prevent glare and lens flare. Lens hoods...

A Celor lens (also known as a symmetric dialyte) is a highly corrected lens of the Dialyt type, designed for process photography, involving reproduction...

a single-lens reflex camera (SLR) is a type of camera that uses a mirror and prism system to allow photographers to view through the lens and see exactly...

light; it has units of length, and for an idealized thin lens is equal to the distance between the lens and its focal points. A positive focal length indicates...

The Canon RF lens mount is an interchangeable-lens mount developed by Canon for its full-frame mirrorless interchangeable-lens cameras, and featured first...

A pancake lens is a colloquial term for a flat, thin camera lens assembly (short barrel). The majority are prime lenses of a normal or slightly wider...

In film and photography, a prime lens is a fixed focal length photographic lens (as opposed to a zoom lens), typically with a maximum aperture from f/2...

Anamorphic lenses have more complex optics than standard spherical lenses which require more light, and can introduce distinctive distortions such as lens flares...

A lens cover or lens cap provides protection from scratches, moisture, and minor collisions for camera and camcorder lenses. Lens covers come standard...

Media Lens is a British media analysis website established in 2001 by David Cromwell and David Edwards. Cromwell and Edwards are the site's editors and...

fixed-lens cameras, also known as premium compact cameras or high-end point-and-shoot cameras. These are digital cameras with a non-interchangeable lens and...

The Peli Lens is a mobility aid for people with homonymous hemianopia. It is also known as “EP” or Expansion Prism concept and was developed by Dr. Eli...

A lens board is a stiff, opaque board with a hole in the center, onto which a lens is mounted, so that the lens can be attached easily to the front of...

Nikon F-mount is a type of interchangeable lens mount developed by Nikon for its 35mm format single-lens reflex cameras. The F-mount was first introduced...

In photography and cinematography, a normal lens is a lens that reproduces a field of view that appears "natural" to a human observer. In contrast, depth...

A ball lens is an optical lens in the shape of a sphere. Formally, it is a bi-convex spherical lens with the same radius of curvature on both sides, and...

The Jupiter (Russian: Юпитер, "Jupiter") series of lenses are Russian camera lenses made by various manufacturers in the former Soviet Union. They were...

into effect in March 2015. Its seat is in Lens. It consists of the following communes: Annay Lens Loison-sous-Lens Décret n° 2014-233 du 24 février 2014 portant...

any geometric change in field-of-view by a camera lens when changing the focus distance of that lens. Even if the angle-of-view is constant, distortion...

A lens antenna is a directional antenna that uses a shaped piece of microwave-transparent material to bend and focus microwaves by refraction, as an optical...

secondary lens or accessory lens is a lens designed to be used in conjunction with another lens, called the primary lens. A secondary lens may be designed...

An embedded lens is a gravitational lens that consists of a concentration of mass enclosed by (embedded in) a relative void in the surrounding distribution...

The lens capsule is a component of the globe of the eye. It is a clear elastic basement membrane similar in composition to other basement membranes in...

The EF lens mount is the standard lens mount on Canon’s EOS family of cameras. EF stands for "Electro-Focus": automatic focusing on EF lenses is handled...

A magnetic lens is a device for the focusing or deflection of moving charged particles, such as electrons or ions, by use of the magnetic Lorentz force...

describe digital interchangeable lens cameras. Mirrorless cameras have become the most popular kind of interchangeable lens camera in both professional and...

aperture of an optical system (including a system consisting of a single lens) is the hole or opening that primarily limits light propagated through the...

Lens University is a private university located in Ilemona, Oyun Local Government Area, Kwara State, Nigeria. It was established in 2025 and is licensed...

The wind lens is a modification on the wind turbine created by Professor Ohya from Kyushu University, as an attempt to be more efficient in producing electricity...

An explosive lens—as used, for example, in nuclear weapons—is a highly specialized shaped charge. In general, it is a device composed of several explosive...

the use of camera movements that change the orientation or position of the lens with respect to the film or image sensor on cameras. Sometimes the term is...

In photography, a rectilinear lens is a photographic lens that yields images where straight features, such as the edges of walls of buildings, appear...

A kit lens is a "starter" lens which can be sold with an interchangeable-lens camera such as a mirrorless camera or DSLR. It is generally an inexpensive...

An einzel lens (from German: Einzellinse – single lens), or unipotential lens, is a charged particle electrostatic lens that focuses without changing...

A varifocal lens is a camera lens with variable focal length in which focus changes as focal length (and magnification) changes, as compared to a parfocal...

series of L lenses (Luxury lenses) are a professional line of photography lenses made by Canon. Canon has sold zoom and prime L-series lenses for the discontinued...

optics, a relay lens is a lens or a group of lenses that receives the image from the objective lens and relays it to the eyepiece. Relay lenses are found in...

A lenticular lens is an array of lenses, designed so that when viewed from slightly different angles, different parts of the image underneath are shown...

In nano-optics, a plasmonic lens generally refers to a lens for surface plasmon polaritons (SPPs), i.e. a device that redirects SPPs to converge towards...

image stabilization Multi-group zoom lens system Cine lens Zoom lens Telephoto lens Wide-angle lens Camera lens admin (2019-02-21). "ENG & EFP crew equipments...

Bernard Lens I (c.1630–1707) was a Dutch painter and writer of religious treatises. Lens was born in the Netherlands, and later moved to England. He primarily...

Life thru a Lens is the debut solo album by English singer-songwriter Robbie Williams following his departure from Take That. Released on 29 September...

Multifocal lens may refer to: Progressive lens, used in eyeglasses Multifocal intraocular lens Multifocal diffractive lens, a diffractive optical element...

A triplet lens is a compound lens consisting of three single lenses. The triplet design is the simplest to give the required number of degrees of freedom...

An electrostatic lens is a device that assists in the transport of charged particles. Electrostatic lenses can focus, and also accelerate or decelerate...

The Gauss lens is a compound achromatic lens that uses two uncemented elements; in its most basic form, a positive meniscus lens on the object side and...

Nicholas Lens Noorenbergh (born 1957) is a Belgian composer of contemporary music, particularly known for his operas. His work is published by Schott Music...

lens, also known as variable power cross cylinder lens, is a lens used to diagnose a type of refractive error known as astigmatism. The Stokes lens,...

Google Contact Lens was a smart contact lens project announced by Google on 16 January 2014. The project aimed to assist people with diabetes by constantly...

The coverage of a lens is the size of the image it can produce, measured as the diameter of the image circle produced by the optics. In a camera system...

aplanatic lens is a lens that is free of both spherical and coma aberrations. Aplanatic lenses can be made by combining two or three lens elements. A...

The Plasmat lens is a widely used and long-established lens type invented by Paul Rudolph in 1918, especially common in large-format photography. It provides...

gravitational lens or solar gravity lens (SGL) is a theoretical method of using the Sun as a large lens with a physical effect called gravitational lensing. It...

Pocket Kodak has a lens on a flat platform which extends manually from the body, sealed by a light-tight bellows. Several different lenses were offered, with...

"Into the Lens" is a song written by Trevor Horn and Geoff Downes. It was originally released by progressive rock band Yes, of which Horn and Downes were...

periscope lens, sometimes called a folded lens, is a mechanical assembly of lens elements that uses a prism or mirror to redirect light through the lenses at...

A swivel lens is a lens that freely rotates while attached to a camera body. They are used on some compact digital and video cameras (camcorders). These...

lens clock is a mechanical dial indicator that is used to measure the dioptric power of a lens. It is a specialized version of a spherometer. A lens clock...

The Hektor is a photographic lens design manufactured by Leica Camera. The first "fast" lens available for the Leica I(A) was the Hektor 50mm f/2,5. Later...

The Zoomar lens was the first commercially successful zoom lens, designed by optical engineer Frank G. Back as an outgrowth of his research on viewfinders...

Lens Express was a direct-mail-order company that sold contact lenses that were available over-the-phone, and also offered a free catalog. The company...

lens placode is a thickened portion of ectoderm that serves as the precursor to the lens. Invagination is the process of folding in cells. The lens placode...

Louis Lens, son of rose-breeder Victor Lens, (3 March 1924 - 10 May 2001), was a rose breeder in the Benelux countries. The roses introduced by him and...

Cine lenses or cinema lenses are lenses that are designed especially for cinematography, and whose main distinguishing feature from conventional photographic...

≥ 1:1) compared to the original subject. Building on this, a macro lens is therefore a lens capable of optical reproduction ratios of 1:1 or greater (e.g....

digital single-lens reflex camera (digital SLR or DSLR) is a digital camera that combines the optics and mechanisms of a single-lens reflex camera with...

Pentax lenses are designed for interchangeable-lens cameras using 120 film and 135 film sizes; they are manufactured and sold by Asahi Optical Company...

Lens Technology Co., Ltd. (Chinese: 蓝思科技股份有限公司) is a Chinese precision manufacturing company that produces glass, ceramic, metal, and sapphire components...

types Biconcave lens Biconvex lens Convex-concave lens Plano concave lens Plano convex lens Meniscus lens Designs Wollaston landscape lens There are many...

lenses, sometimes referred to as all-in-one lenses, that are designed for mirrorless cameras. There is no precise definition of superzoom, but lenses...

A lens lantern is a small, self-contained lamp structure which may sometimes be used to serve as a lighthouse. Unlike a regular Fresnel lens, the lantern...

intraocular lens (PIOL) is an intraocular lens that is implanted surgically into the eye to correct refractive errors without removing the natural lens (also...

Death Lens is an American melodic hardcore band based in Los Angeles.- The band formed in 2011 and is composed of Bryan Torres (vocals), Jhon Reyes (guitar...

to spare on 13 May 2026, following a 2–0 win against closest competitors Lens. A total of eighteen teams participated in the 2025–26 edition of the Ligue...

shot from close using a wide-angle lens (with an angle of view wider than a normal lens). Objects close to the lens appear abnormally large relative to...

Nikkor is the brand of lenses produced by Nikon Corporation, including camera lenses for the Nikon F-mount and more recently, for the Nikon Z line of...

600mm is a super-telephoto lens made by Canon Inc. The lens has an EF mount to work with the EOS line of cameras. f/4L USM lens was released in November...

Sidney Lens (January 12, 1912 – June 18, 1986), also known by his birth name Sidney Okun, was an American labor leader, political activist, and author...

Soft contact lenses are one of several types of contact lenses for corrective vision eyewear as prescribed by optometrists and ophthalmologists. In the...

A critical lens is a way of looking at a particular work of literature by focusing on style choices, plot devices, and character interactions and how they...

Independent Lens is a weekly television series airing on PBS featuring documentary films made by independent filmmakers. Past seasons of Independent Lens were...

lens for the Pentax K-mount. At only 0.6 inches (15 mm) long, it was the smallest lens made by Pentax until the 40mm XS lens was introduced. The lens...

Word Lens was an augmented reality translation application from Quest Visual. Word Lens used the built-in cameras on smartphones and similar devices to...

Sociology Lens is a peer-reviewed academic journal, focusing on critical and historical perspectives on social issues. It was formerly known as Journal...

Lens-Lestang (French pronunciation: [lɑ̃s lɛstɑ̃]) is a commune in the Drôme department in southeastern France. Communes of the Drôme department "Répertoire...

US Torcy and FC Montfermeil, before joining the RC Lens academy in 2018. He first played with Lens' reserve team in National 2, before signing his first...

70–200mm lenses are a group of telephoto zoom full-frame lenses made by Canon. The lenses have an RF mount to work with the R line of cameras. The lens comes...

Lens is 2016 Indian drama thriller film written and directed by Jayaprakash Radhakrishnan. The film features dialogues predominately in Tamil and English...

through-the-lens metering (TTL metering) refers to a feature of cameras whereby the intensity of light reflected from the scene is measured through the lens; as...

The Mir (Russian: Мир) series of lenses are Russian camera lenses made by various manufacturers in the former Soviet Union. The first variant was the Mir-1...

Courcelles-lès-Lens (French pronunciation: [kuʁsɛl lɛ lɑ̃s], literally Courcelles near Lens; Picard: Courchelle-lès-Linse) is a commune in the Pas-de-Calais...

was a type of camera lenses, made in the USSR. They were usually supplied with Zenit cameras and thus usable with other M42 lens mount cameras such as...

The EF 200mm USM lens is an L-series prime telephoto lens made by Canon Inc. for the EOS line of cameras. Four 200 mm primes were made: f/1.8, two f/2...

A cataract is a cloudy area in the lens of the eye that impairs vision. How fast a cataract develops depend on the type and one or both eyes may be affected...

fringing, is a failure of a lens to focus all colors to the same point. It is caused by dispersion: the refractive index of the lens elements varies with the...

produce lenses with flat surfaces, or lenses that do not have the aberrations typical of traditional spherical lenses. Gradient-index lenses may have...

visual aid, as variously termed spectacles or glasses exist, featuring lenses that are colored, polarized or darkened. In the early 20th century, they...

In geology, a lens or lentil is a body of ore or rock that is thick in the middle and thin at the edges, resembling a convex lens in cross-section. To...

details lenses for single-lens reflex and digital single-lens reflex cameras (SLRs and DSLRs respectively). The emphasis is on modern lenses for 35 mm...

Lens (French pronunciation: [lɛ̃s]) is a municipality in the district of Sierre in the canton of Valais in Switzerland. Lens is first mentioned in 1177...

lens extraction, also known as refractive lensectomy, custom lens replacement or refractive lens exchange is a surgical procedure in which clear lens...

refraction and reflection are combined in an optical system, usually via lenses (dioptrics) and curved mirrors (catoptrics). Catadioptric combinations are...

This is a list of smartphones with a telephoto lens that offers a focal length (35 mm equivalent) of at least 100 mm or "4× optical zoom" with an imaging...

Various third-party lens manufacturers have released the following lenses for Sony E-mount cameras since 2010. They are also compatible with Hasselblad...

optical test configurations. The manufacture of a conventional spherical lens typically begins with the generation of the optic's rough shape by grinding...

wide-angle lens is a lens covering a large angle of view. Conversely, its focal length is substantially smaller than that of a normal lens for a given...

Lens or camera fungus is the popular name for the infestation of optical devices such as lenses, low pass filter (OLPF) or the camera sensor, by fungal...

A parfocal lens is a lens that stays in focus when magnification/focal length is changed. There is inevitably some amount of focus error, but it is too...

Tair is the name of a series of prime lenses manufactured by KMZ in the Soviet Union. The Tair 11 series have a focal length of 133mm with a maximum aperture...

The M42 lens mount is a screw thread mounting standard for attaching lenses to 35 mm cameras, primarily single-lens reflex models. It is more accurately...

The EF 80–200mm lens is a discontinued telephoto zoom lens made by Canon. The lens has an EF lens mount that fits the EOS line of cameras. There are four...

Art is a wide-angle prime lens made by the Sigma Corporation. The lens was announced at the 2012 photokina trade fair. The lens is produced in Canon EF...

The Canon EF 100 mm lenses are used for Canon DSLR cameras. There are four different types of EF 100 mm lens for Canon. Certain lenses are best for macro...

A compound refractive lens (CRL) is a series of individual lenses arranged in a linear array in order to achieve focusing of X-rays in the energy range...

entocentric lens is a compound lens which has its entrance or exit pupil inside the lens. This is the most common type of photographic lens. The aperture...

In photography, a close-up lens (sometimes referred to as close-up filter or a macro filter) is a simple secondary lens used to enable macro photography...

In photography, a long-focus lens is a camera lens which has a focal length that is longer than the diagonal measure of the film or sensor that receives...

A graphene lens is an optical refraction device. Graphene's unique 2-D honeycomb contributes to its unique optical properties. The honeycomb structure...

Ice lenses are bodies of ice formed when moisture, diffused within soil or rock, accumulates in a localized zone. The ice initially accumulates within...

view from the angle of coverage, which describes the angle at which the lens projects the image circle onto the image plane (the plane where the film...

2003) is a professional footballer who plays as a forward for Ligue 1 club Lens, on loan from Primeira Liga club Benfica. Born in Austria, he plays for the...

In optics, a doublet is a type of lens made up of two simple lenses paired together. Such an arrangement allows more optical surfaces, thicknesses, and...

The Louvre-Lens is an art museum located in Lens, France, approximately 200 kilometers north of Paris. It displays objects from the collections of the...

measure of the light-gathering ability of an optical system such as a camera lens. It is defined as the ratio of the system's focal length to the diameter...

The Visby lenses are a collection of lens-shaped manufactured objects made of rock crystal (quartz) found in several Viking graves on the island of Gotland...

EF-M lenses, Nikon DX lenses, Olympus Four Thirds System lenses, Sigma DC lenses, Tamron Di-II lenses, Pentax DA lenses, Fujifilm XF and XC lenses, and...

The Canon FD lens mount is a physical standard for connecting a photographic lens to a 35mm single-lens reflex camera body. The standard was developed...

Gauss lens is a compound lens used mostly in camera lenses that reduces optical aberrations over a large focal plane. The earliest double Gauss lens, patented...

A superlens, or super lens, is a lens which uses metamaterials to achieve super-resolution imaging and go beyond the diffraction limit. The diffraction...

gravitational lensing is a gravitational lensing effect that is strong enough to produce multiple images, arcs, or Einstein rings. Generally, for strong lensing to...

A Stanhope lens is a simple, one-piece microscope invented by Charles, the third Earl of Stanhope. It is a cylinder of glass with each end curved outwards...

The Sigma APO 180mm F3.5 EX DG lens was a telephoto/macro lens produced by Sigma Corporation. It contained two SLD (Special Low Dispersion) glass elements...

flattener lens is a type of lens used in modern binocular designs and in astronomic telescopes to improve edge sharpness. Field flattener lenses counteract...

The Frazier lens is a special camera lens designed by Australian photographer Jim Frazier. The Frazier lens provides an appearance of a massive depth...

a professional-level wide-angle zoom lens made by Sigma Corporation. At launch it was the widest rectilinear lens available for full-frame 35mm SLR cameras...

Telephoto compression (also known as lens compression or perspective compression) is the apparent visual effect in photography and cinematography in which...

Sigi Lens (born 26 October 1963) is a retired Surinamese footballer and currently is a sports agent. During his career he served AZ and Fortuna Sittard...

A dialyte lens (sometimes called a dialyt) is a compound lens design that corrects optical aberrations where the lens elements are widely air-spaced....

amount of light entering the interior of the eye; then another lens (the crystalline lens) that accomplishes the remaining focusing of light into images;...

A night-vision contact lens, also known as an infrared-converting contact lens, is a type of soft contact lens that uses nanoparticles to convert near-infrared...

intraocular lens or glued IOL is a surgical technique for implantation, with the use of biological glue, of a posterior chamber IOL (intraocular lens) in eyes...

In 2-dimensional geometry, a lens is a convex region bounded by two circular arcs joined to each other at their endpoints. In order for this shape to be...

A hypercentric or pericentric lens is a lens system where the entrance pupil is located in front of the lens, in the space where an object could be located...

camera lenses of four elements. The Elmar lenses originally had a maximum aperture of f/3.5. These lenses were derived from a 50 mm f/3.5 Elmax lens first...

Large format lenses are photographic optics that provide an image circle large enough to cover the large format film or plates used in large format cameras...

The arrondissement of Lens is an arrondissement of northern France in the Pas-de-Calais department in the Hauts-de-France region. It has 50 communes. Its...

Noyelles-sous-Lens (French pronunciation: [nwajɛl su lɑ̃s], literally Noyelles under Lens) is a commune in the Pas-de-Calais department in northern France...

are still commonly used by professionals. Digital cameras typically use a lens with an alterable diaphragm to focus light. The diaphragm and shutter work...

Lens (French pronunciation: [lɑ̃s] ; Picard: Linse) is a city in the Pas-de-Calais department in northern France. It is one of the main towns of Hauts-de-France...

A lens throat is the inner diameter of a camera lens mount. It is the width of the opening, measured between two non-obstructed points, i.e., not including...

The EF 28mm lenses are a group of prime lenses made by Canon that share the same focal length. These lenses use the EF type mount that fits the Canon...

Bernard Lens may refer to one of three British artists: Bernard Lens I (1630–1707), probably from the Netherlands, also the writer of several religious...

century led to an array of lens designs intended for photography. The problems of photographic lens design, creating a lens for a task that would cover...

A Rotman lens (sometimes referred to as a Rotman-Turner lens) is a passive electronic component used for beamforming in radio frequency applications....

USM is a "standard" zoom lens that was introduced in February, 1998. The lens has a 4.82x zoom range and is based on the EF Lens Mount and works with all...

zoom-lens reflex (ZLR) camera is a low-end single-lens reflex (SLR) camera having an integrated zoom lens rather than the interchangeable lenses found...

Kamera lens is a unicellular, flagellate organism and the only species in the genus Kamera. Though the species has been known for centuries, it is poorly...

φακός (phakos) 'lens' and δονέω (doneo) 'to shake') is the tremulousness or vibration of the lens with eye movement. This is often due to lens subluxation...

snaps and messaging. Bitmoji characters can also be used as World Lenses. The "Lens" feature, introduced in September 2015, allows users to add real-time...

from it to produce a real image of the object. Objectives can be a single lens or mirror, or combinations of several optical elements. They are used in...

Multifocal and accommodating intraocular lenses are artificial intraocular lenses (IOLs) that are designed to provide focus of both distance and near objects...

The Canon EF-S lens mount is a derivative of the EF lens mount created for some Canon digital single-lens reflex cameras with APS-C sized image sensors...

The Siege of Lens was an episode of the Thirty Years' War. It was organised in 1647 by Jean de Gassion, Marshal of France. The Siege of Lens took place...

intensity through a diaphragm, focuses it through an adjustable assembly of lenses to form an image, converts this image into a set of electrical signals,...

6 is a zoom lens produced by Canon Inc. for their series of EOS single-lens reflex cameras. Canon produced eight iterations of the lens from 1989 to...

system (MFT) of still and video cameras and lenses was released by Olympus and Panasonic in 2008; lenses built for MFT use a flange focal distance of...

for one and a half seasons before his transfer to French side Lens in 2023. While at Lens, he became the first Uzbek to play in Ligue 1, before joining...

The design of photographic lenses for use in still or cine cameras is intended to produce a lens that yields the most acceptable rendition of the subject...

The EF 17–40mm f/4L USM lens is a wide-angle lens made by Canon Inc. The lens has an EF mount to work with the EOS line of cameras. Other than the front...

one of the best defenders of his generation. Varane played for French club Lens at youth level and, ahead of the 2010–11 season, began training with the...

Rain on Lens is the ninth studio album by Smog. It was released on September 17, 2001, in Europe by Domino Recording Company and a day later in North America...

A phase telescope or Bertrand lens is an optical device used in aligning the various optical components of a light microscope. In particular it allows...

are loosely defined as fixed-lens digital cameras with DSLR-style bodies and superzoom lenses. Their larger bodies and lenses differentiate them from smaller...

Photographic lenses for Hasselblad cameras have been designed and manufactured by several companies, primarily by Carl Zeiss AG; others include Fujifilm...

The EF 500mm lenses are a group of super-telephoto prime lenses made by Canon that share the same focal length. These lenses have an EF type mount, and...

EF-S 18–55mm lens f/3.5–5.6 is a Canon-produced wide-angle to mid telephoto zoom lens for digital single-lens reflex cameras with an EF-S lens mount. The...

Regeneration of the lens in the eye has been studied since the 18th century. As this process has been explored, three different pathways have been found...

Kerr-lens mode-locking (KLM) is a method of mode-locking lasers via the nonlinear optical Kerr effect. This method allows the generation of pulses of light...

Fouquières-lès-Lens (French pronunciation: [fukjɛʁ lɛ lɑ̃s], literally Fouquières near Lens) is a commune in the Pas-de-Calais department in the Hauts-de-France...

refractor or dioptric telescope) is a type of optical telescope that uses a lens as its objective to form an image. The refracting telescope design was originally...

the limit of a "thin lens", where the distances between the source, lens, and observer are much larger than the size of the lens (this is almost always...

75–300mm f/4–5.6 lens is a telephoto zoom lens for Canon EOS single-lens reflex cameras with an EF lens mount. There are 3 basic types of the lens: the IS USM...

which are tiny independent photoreception units that consist of a cornea, lens, and photoreceptor cells which distinguish brightness and color. The image...

landscape lens, named for William Hyde Wollaston, was a meniscus lens with a small aperture stop in front of the concave side of the lens, providing...

USM is a professional EF mount telephoto zoom lens manufactured by Canon Inc. The first version of this lens was announced in September 1998, and an updated...

Huchra's lens is the lensing galaxy of the Einstein Cross (Quasar 2237+30); it is also called ZW 2237+030 or QSO 2237+0305 G. It exhibits the phenomenon...

Nikon F 80-200mm lens refers to several generations of single-lens reflex telephoto zoom lenses for made by Japanese camera manufacturer Nikon. Nikon has...

STM was a standard prime lens which was introduced by Canon in June 2012, alongside the EOS 650D/Kiss X6i/Rebel T4i. The lens features a maximum aperture...

Z-mount (stylised as Z {\displaystyle \mathbb {Z} } ) is an interchangeable lens mount developed by Nikon for its mirrorless digital cameras. It was first...

Hyper-radial or hyperradiant Fresnel lenses are Fresnel lenses used in lighthouses. They are larger than "first-order" lenses, having a focal length (radius)...

200-500mm f/2.8 EX DG lens is a professional-level telephoto zoom lens made by Sigma Corporation. It is notable for being the first lens with an aperture of...

Lens (French pronunciation: [lɑ̃s] ; Picard: Linse) is a municipality of Wallonia located in the province of Hainaut, Belgium. In 2007 its population was...

A Galactic lens is a component of a galaxy. It presents an almost uniform distribution of surface brightness. This aspect can be noticeable in the region...

focus occurs when a camera lens forms images that are blurred due to uncorrected spherical aberration. A soft focus lens deliberately introduces spherical...

thirteen years in top flight. Paris Angers Auxerre Brest Le Havre Le Mans Lens Lille Lorient Lyon Marseille Monaco Nice Rennes Strasbourg Toulouse Troyes...

Orthokeratology, also referred to as Night lenses, Ortho-K, OK, Overnight Vision Correction, Corneal Refractive Therapy (CRT), Accelerated Orthokeretology...

Canon EF 17–35mm f/2.8L USM lens was a wide-angle zoom lens made by Canon Inc. It was replaced by the Canon EF 16–35mm lens. Wikimedia Commons has media...

twin-lens reflex camera (TLR) is a type of camera with two lenses with the same focal length: a viewfinder lens and a taking (or objective) lens, which...

normal-to-telephoto zoom lens. It is one of the first lenses in the Canon EF series. In June 1988, Canon announced the EF 50-200mm f/3.5-4.5L lens. This lens has very...

Fresnel lens with a spherical reflector or an ellipsoidal reflector with a lens train containing two plano-convex lenses or a single step lens. The carbon-arc...

An apochromat, or apochromatic lens (apo), is a photographic or other lens that has better correction of chromatic and spherical aberration than the much...

cameras produced by Fujifilm. The series encompasses fixed lens and interchangeable lens mirrorless cameras and premium compact point-and-shoot cameras...

The Canon EF 20 mm f/2.8 USM lens is an ultra-wide-angle prime lens produced by Canon for the EF lens mount. It features an ultrasonic motor. On a camera...

(Archaeological Museum of Heraclion, Greece). Lenses from Rhodes date around 700 BC, as do Assyrian lenses such as the Nimrud lens. The ancient Romans and Greeks filled...

Gender lens investing (also known as gender-smart investing or gender finance) is the practice of investing premised on the understanding that gender is...

League club Crystal Palace. He has previously managed French clubs Lyon and Lens. Pierre Sage was born on 5 May 1979 in Lons-le-Saunier, Jura. Sage spent...

EF 28–105 mm f/4–5.6 is an inexpensive zoom lens often included as a kit lens with Canon 35 mm single-lens reflex cameras. 28–105 mm is a standard wide...

The EF 35–350mm f/3.5–5.6L USM lens is a discontinued telephoto zoom lens manufactured by Canon. This lens has an EF type mount, that fits the Canon EOS...

The 70-300mm lens is a telephoto zoom lens made by Nikon. The lens has an F-mount to work with all the SLRs line of cameras (except the early 70-300G...

0-dioptre lens placed close to a thin 0.5-dioptre lens yields almost the same focal length as a single 2.5-dioptre lens. The idea of numbering lenses based...

An eyepiece, or ocular lens, is a type of lens that is attached to a variety of optical devices such as telescopes and microscopes. It is named because...

photographic lens for which the focus is not adjustable is called a fixed-focus lens or sometimes focus-free. The focus is set at the time of lens design,...

The Canon EF 14mm f/2.8L USM is an ultra wide angle prime lens. It is the widest prime lens in the Canon EF series. Because it is corrected for a rectilinear...

An ultra-wide angle lens is a lens whose focal length is shorter than that of an average wide-angle lens, providing an even wider angle of view. The term...

The EF 20–35mm lens is a wide-angle lens made by Canon Inc., with an EF mount. There are two models, an L-series f/2.8L and a consumer-grade f/3.5–4.5...

The EF 28–300mm f/3.5–5.6L IS USM lens is a superzoom lens made by Canon Inc. The lens has an EF-type mount, which fits the Canon EOS line of cameras....

Lens station (French: Gare de Lens) is a railway station in Lens, Pas-de-Calais, France. The building was built in 1926–1927 to resemble a steam locomotive...

50mm lenses are a group of normal prime lenses made by Canon that share the same focal length. These lenses are based on the classic double-Gauss lens, with...

SDM lens is a professional prime lens for the Pentax K-mount. It is designed for portrait use with a 35mm equivalent focal length of 82.5mm. The lens features...

Contarex lenses are a series of photographic camera lenses used by the Contarex camera, which use the Contarex bayonet lens mount. The first set of lenses was...

The history of the single-lens reflex camera (SLR) begins with the use of a reflex mirror in a camera obscura described in 1676, but it took a long time...

CinemaScope is a cinematographic technique which used an anamorphic lens to produce widescreen pictures. Crucially, these could be shown in theatres using...

8 mm super-wideangle circular fisheye photographic lens, and is designed as an interchangeable lens for Canon, Nikon, Pentax, Olympus digital or film cameras...

f/4–5.6 USM lens is a consumer grade lens that has now been discontinued. It was originally released in February 1998, as one of two kit lenses for the Canon...

6 ED AW is the longest prime lens in production under the Pentax brand. It has a telescope-type optical design. The lens is fully compatible with the...

Defocus Incorporated Multiple Segments lens (DIMS lens), commercially known as MiyoSmart, is a type of spectacle lens primarily developed to manage and slow...

the “PK-mount", is a bayonet lens mount standard for mounting interchangeable photographic lenses to 35 mm single-lens reflex (SLR) cameras. It was created...

AC Lens is a privately held company based in Columbus, Ohio that sells contact lenses, eyeglasses and vision care products online. Arlington Contact Lens...

lens must be used, which directs a cone of light away from the objective lens. To maximize the scattered light-gathering power of the objective lens,...

The Canon EF 35mm lenses are a family of wide angle prime lenses with EF mount made by Canon Inc. The family also includes one EF-S lens that only mounts...

A lens controller is device that controls motorized photographic lens functions such as zoom, focus, and iris opening (aperture). Lens controllers can...

Intraocular lens scaffold, or IOL scaffold technique, is a surgical procedure in ophthalmology. In cases where the posterior lens capsule is ruptured...

William Lens Aldous (baptized 29 September 1792 – 19 November 1878) was a British illustrator who reproduced findings of the early workers in microscopy...

For an interchangeable lens camera, the flange focal distance (FFD) (also known as the flange-to-film distance, flange focal depth, flange back distance...

(French pronunciation: [anɛ]; also referred to as Annay-sous-Lens, literally Annay under Lens) is a commune in the Pas-de-Calais department in the Hauts-de-France...

The Ossuary Lens is the seventh studio album by American death metal band Allegaeon, released on April 4, 2025. It is the band's first release to feature...

Konica Minolta released the following lenses for Minolta A-mount cameras between 1985 and 2006. While most auto-focus lens designs were new developments, some...

lenses with integrated autofocus motor includes only Nikon F-mount lenses which fully autofocus in all modes of all Nikon F-mount digital single-lens...

fisheye is a photographic lens manufactured by Sigma Corporation. It is a diagonal fisheye lens. Unlike most fisheye lenses, this lens is designed for digital...

Children of the Lens is a science fiction novel by American author E. E. Smith. It was originally serialized in the magazine Astounding beginning in 1947...

or flare stop for other uses of diaphragms in lenses). The diaphragm is placed in the light path of a lens or objective, and the size of the aperture regulates...

The EF 70–210mm lens is a discontinued telephoto zoom lens made by Canon Inc. It came in two different versions. The lens has an EF mount and works with...

camera systems are a series of medium format film and digital cameras and lenses manufactured by Mamiya and its successors. They are called "645" because...

is a particular problem at slow shutter speeds or with long focal length lenses (telephoto or zoom). With video cameras, camera shake causes visible frame-to-frame...

refractive error due to rotational asymmetry in the eye's refractive power. The lens and cornea of an eye without astigmatism are nearly spherical, with only...

zonule (little band) that connects the ciliary body with the crystalline lens of the eye. The Zonular fibers are viscoelastic cables, although their component...

"Lens" is the sixth episode of the second season of the American supernatural drama television series The Leftovers, based on the novel of the same name...

The Bregans lens is a large lens, mounted in a gilt wooden frame, with a focal length of 1,580 mm. Another smaller lens acts as a condenser and can be...

or onto a translucent screen viewed from outside. Camera obscuras with a lens in the opening have been used since the second half of the 16th century and...

The Canon EF 90–300mm f/4.5–5.6 lens is a telephoto zoom lens for Canon EOS single-lens reflex cameras with an EF lens mount. There have been two versions...

The Sigma 50mm f/1.4 DG HSM Art lens is a professional-level fixed focal length camera lens made by Sigma Corporation. It was announced at CES in January...

Lens Creek is a tributary of the Kanawha River, 6.4 miles (10.3 km) long, in West Virginia in the United States. Via the Kanawha and Ohio rivers, it is...

The HD Pentax-D FA 70–210mm f/4.0 ED SDM WR lens is a telephoto zoom lens for the Pentax K-mount. The lens was on the roadmap since 2019, has been announced...

A pinhole camera is a simple camera without a lens but with a tiny aperture (the so-called pinhole)—effectively a light-proof box with a small hole in...

The extended hemispherical lens is a commonly used lens for millimeter-wave electromagnetic radiation. Such lenses are typically fabricated from dielectric...

LensCulture is a photography network and online magazine about contemporary photography in art, media, politics, commerce and popular cultures worldwide...

specially designed objective lens used to increase the resolution of the microscope. This is achieved by immersing both the lens and the specimen in water...

of commonly used glasses, so fluorite is useful in making apochromatic lenses, and particularly valuable in photographic optics. Fluorite optics are also...

Minolta sold cameras and lenses with the Minolta SR-mount between 1958 and 1996. Most Minolta lenses for SR-mount cameras are branded Rokkor; in the United...

these dimensions are used in many digital single-lens reflex cameras (DSLRs), mirrorless interchangeable-lens cameras (MILCs), and a few large-sensor live-preview...

Kabushiki-gaisha Tamuron) is a Japanese company manufacturing photographic lenses, optical components and commercial/industrial-use optics. Tamron Headquarters...

The Canon EF 38–76mm f/4.5–5.6 is an EF mount wide-to-normal zoom lens. Canon Inc. "EF38–76mm f/4.5–5.6". Canon Camera Museum. Retrieved 2016-05-24. AFLENSES...

The Panasonic Lumix 45mm f/2.8 lens is a macro lens for Micro Four Thirds system cameras. It is co-branded between Leica and Panasonic, built in Japan...

focusing distance and require the photographer to transfer the value to the lens focus ring; cameras without built-in rangefinders could have an external...

A Chang–Refsdal lens is a point-mass gravitational lens (e.g. black hole) perturbed by constant external shear. The name derives from Kyongae Chang and...

of physical structure designed to emit light from a system of lamps and lenses and to serve as a beacon for navigational aid for maritime pilots at sea...

animals may change focus are: Changing the shape of the lens. Changing the position of the lens relative to the retina. Changing the axial length of the...

Lens Records is a Chicago-based record label founded by Robert Hyman. The label has released a variety of work in different genres. Ahab Rex Avagami Beehatch...

The Sigma 50-500mm f/4-6.3 EX DG HSM is a super-telephoto zoom lens produced by Sigma Corporation. It contains four SLD (Special Low Dispersion) glass...

The EF 70–300mm lenses are a series of telephoto zoom lenses made by Canon Inc. They have a Canon EF lens mount to work with the EOS line of cameras....

length f by P = 1/f. Converging lenses have positive optical power, while diverging lenses have negative power. When a lens is immersed in a refractive medium...

The British Contact Lens Association is an educational and scientific membership organisation formed in 1977. In 2013 it had 2000 members. It organises...

Nadjem Lens Annab (born 20 July 1988) is a Belgian-Algerian professional football player who plays as a midfielder. Born in Belgium, Annab's family is...

symmetric, or approximately so, arising from the symmetry of a photographic lens. These radial distortions can usually be classified as either barrel distortions...

The Samsung NX-mount is the lens mount used on NX series mirrorless interchangeable lens cameras by Samsung. The mount was first implemented in the Samsung...

Neotiara lens is a species of sea snail, a marine gastropod mollusk in the family Mitridae, the miters or miter snails. The length of the shell is documented...

are small fixed-lens "point-and-shoot" digital cameras that have a high optical zoom ratio. These cameras all include a power zoom lens that retracts into...

EX DC circular fisheye is a photographic lens manufactured by Sigma Corporation. It is a circular fisheye lens, designed to project a 180-degree field...

A bionic contact lens is a proposed device that could provide a virtual display that could have a variety of uses from assisting the visually impaired...

crystalline lens inside the human eye has been implicated as a causative factor in many forms of glaucoma. Lens induced glaucomas or Lens related glaucomas...

Judith of Lens (born Normandy, between 1054 and 1055 – died Fotheringhay, c. 1090) was a niece of William the Conqueror. She was a daughter of Count Lambert...

distant object (and vice versa), comprising coordinated changes in vergence, lens shape (accommodation) and pupil size. It is dependent on cranial nerve II...

Galileo's objective lens is a specific objective lens held in the Museo Galileo, Florence, Italy. It was used by Galileo Galilei in the Galilean telescope...

Arriscope is a line of anamorphic lenses especially for Arriflex developed by Germany's Isco Optic. ArriScope and ArriVision are a form of the CinemaScope/Panavision...

Optical lens design is the process of designing a lens to meet a set of performance requirements and constraints, including cost and manufacturing limitations...

8 Macro lens is a normal macro lens for the Pentax K-mount. While optimized for digital use, it offers full frame 135 film coverage. The lens is capable...

In astronomy, weak gravitational lensing is a technique to map the mass distribution of astronomical objects. As predicted by general relativity, the...

The aim of an accurate intraocular lens power calculation is to provide an intraocular lens (IOL) that fits the specific needs and desires of the individual...

Through a Blue Lens is a Canadian documentary film produced by the National Film Board of Canada. The film follows interactions between police officers...

front focal plane of the lens (or a lens group within the overall lens), and a sufficiently small aperture will make the lens image-space telecentric....

projection terminology, throw is the distance between a video projector lens and the screen on which it shines. It is given as a ratio (called throw ratio)...

The Sigma 8mm f/4 EX DG is a photographic lens made by the Sigma Corporation. It is a circular fisheye lens for full-frame cameras, and has been replaced...

he had a short spell with Mexican club América before joining French club Lens. Saint-Maximin was born on 12 March 1997 in Châtenay-Malabry, Hauts-de-Seine...

Subjective Refraction is a technique to determine the combination of lenses that will provide the best corrected visual acuity (BCVA). It is a clinical...

The Sigma 300 – 800 mm lens is a professional-level supertelephoto zoom lens made by Sigma Corporation from 2002 to 2019 for use with analog and digital...

watermark of the studio. Lenses typically used in portrait photography are fast, moderate focal length telephoto lenses, though any lens may be used, depending...

of gravitational lensing, caused by the exact alignment of the source, lens, and observer. This results in symmetry around the lens, causing a ring-like...

identical thin lenses of focal length f = R/2, each separated from the next by length d. This construction is known as a lens equivalent duct or lens equivalent...

Four Thirds System Prime lens by Olympus Corporation. In the Micro Four Thirds format, it is a wide- or ultra-wide lens. The lens is focus-by-wire, using...

superachromat, or superachromatic lens, was first conceived and developed by Maximilian Herzberger as the ultimate well-corrected lens. The color shift curve of...

In optics and photography, hyperfocal distance is a distance from a lens beyond which all objects can be brought into an "acceptable" focus. As the hyperfocal...

18-50mm f/2.8 EX DC Macro is a wide to normal angle, zoom lens made by the Sigma Corporation. The lens is produced in Canon EF mount, Four Thirds System, Nikon...

Jenny Lens is a Los Angeles-based photographer who chronicled the early punk rock scene of New York, Los Angeles, San Francisco and London from August...

17–85mm f/4–5.6 IS USM is a standard zoom lens for Canon digital single-lens reflex cameras with an EF-S lens mount and image stabilization. The EF-S designation...

Terrestrial Atmospheric Lens, also known as Terrascope, is a theoretical method of using the Earth's atmosphere as a large lens to build a very powerful...

The Sigma 8–16mm lens is an enthusiast-level, ultra wide-angle rectilinear zoom lens made by Sigma Corporation specifically for use with APS-C small format...

super-telephoto lens marketed by Japanese optical manufacturer Canon in June 1972. It was the longest super-telephoto lens in the Canon FL system. The lens was part...

A solid immersion lens (SIL) has higher magnification and higher numerical aperture than common lenses by filling the object space with a high-refractive-index...

keratitis in contact lens wearers. Lens cases, used to store contact lenses, may form a biofilm leading to colonization of the contact lenses by bacteria, this...

Digital; also sold as the DS6041) is a 6.3-megapixel entry-level digital single-lens reflex camera manufactured by Canon. It was initially announced on 20 August...

improvements in techniques for cataract removal and developments in intraocular lens (IOL) replacement technology, in implantation techniques, and in IOL design...

ultrazoom lens is a type of photographic zoom lens with unconventionally large focal length factors, typically ranging from wide angle to extreme long lens focal...

Loison-sous-Lens (French pronunciation: [lwazɔ̃ su lɑ̃s], literally Loison under Lens) is a commune in the Pas-de-Calais department in the Hauts-de-France...

The Nikon FM is a mechanically operated, interchangeable lens, 35 mm film, single-lens reflex (SLR) camera. It was made in Japan, between 1977 and 1982...

a photographic lens designed by Paul Rudolph at Carl Zeiss in 1896. Rudolph's original was a six-element symmetrical double Gauss lens design. While very...

large sensor interchangeable-lens video camera made and distributed by Sony in 2010–2011. It uses Sony E-mount camera lenses that were first used on the...

Clara-Lane Lens is a Belgian painter, so far particularly known for focussing on portraits of androgynous personas. At the age of 17, she had a first solo...

(originally marked the Asahi Pentax K1000) is an interchangeable lens, 35 mm film, single-lens reflex (SLR) camera, manufactured by Asahi Optical Co., Ltd...

The Sigma APO 150-500mm F5-6.3 DG OS HSM lens is a super-telephoto lens produced by Sigma Corporation. It contains three SLD (Special Low Dispersion) glass...

A rigid gas-permeable lens, also known as an RGP lens, GP lens, or colloquially, a hard contact lens, is a rigid contact lens made of oxygen-permeable...

zoom lens. It was introduced by Canon in 2005 to complement the well-regarded 17–40mm f/4L USM and 70–200mm f/4L USM. The EF 24–105mm f/4L IS USM lens is...

professional 35 mm single-lens reflex camera that replaced the F-1n (an upgraded F-1) as Canon's top-of-the-line 35mm single-lens reflex camera in September...

format of a digital camera determines the angle of view of a particular lens when used with a particular sensor. Because the image sensors in many digital...

mount wide-to-normal zoom lens. It is one of the first lenses in the Canon EF series. It has the same zoom system and 9 lenses in 8 groups layout as the...

f/3.5–4.5 is the first fisheye zoom lens, manufactured by Pentax for single-lens reflex cameras (SLRs) with a K lens mount. At its widest setting of 17mm...

The de Lens family is a bourgeois family of Brussels of which a branch settled in Paris in the century of Louis XIV. Jean de Lens [fr] (1616-1689), goldsmith...

(convex) lens to make things look bigger by allowing the user to hold them closer to their eye. A telescope, which uses its large objective lens or primary...

Tunisia and Morocco. She signed her works A. R. de Lens, A.-R. de Lens and Aline de Lens. De Lens was the first of five children of Emile Delens (the...

featured Schneider Kreuznach Reomar lenses but, sometimes, Rodenstock Reomar lenses were installed. The Rodenstock lenses were based on the original Schneider...

Andries Cornelis Lens or André Corneille Lens (Antwerp, 31 March 1739 – Brussels, 30 March 1822) was a Flemish painter, illustrator, art theoretician and...

5–5.6 IS STM lens is a wide to ultra-wide angle zoom lens for Canon digital single-lens reflex cameras that support the Canon EF-S lens mount. It was...

effect. The lens is not a soft-focus lens. The STF lens is a manual focus-only lens. This lens is the only genuinely Minolta/Sony A-mount lens produced without...

Communauté d'agglomération de Lens – Liévin is the communauté d'agglomération, an intercommunal structure, centred on the cities of Lens and Liévin. It is located...

Color blind glasses or color correcting lenses are light filters, usually in the form of glasses or contact lenses, that attempt to alleviate color blindness...

a small lens, generally with a diameter less than a millimetre (mm) and often as small as 10 micrometres (μm). The small sizes of the lenses means that...

Alcatraz Versus the Shattered Lens is a juvenile fiction novel written by American author Brandon Sanderson, published in December 2010 by Scholastic Press...

with the invention of bifocals. One account states that Franklin cut his lenses in half so that he could follow speakers of French at court by reading their...

of three stages of lensing. The stages are the condenser lenses, the objective lenses, and the projector lenses. The condenser lenses are responsible for...

77mm f/1.8 Limited is a prime lens for Pentax K-mount aimed at portrait photography. It was voted "Greatest Pentax Lens of All Time" at Pentaxforums.com...

Aulacospira lens is a species of small land snail with an operculum, terrestrial pulmonate gastropod mollusc in the family Cyclophoridae. The height of...

70–200mm lenses are a group of telephoto zoom full-frame lenses made by Canon. The lenses have an EF mount to work with the EOS line of cameras. The lens comes...

The Canon EF 28–90mm f/4–5.6 is a full frame SLR zoom lens, also often included as a kit lens with Canon EOS film cameras. The maximum aperture is f/4...

manufactured by Kodak. Most of the Vitessa cameras were fixed-lens models equipped with collapsable lenses for portability. One of the later Vitessa models, the...

2 MP, 1.6× digital zoom) DSC-P41 (2004, 4.1 MP, fixed lens) DSC-P43 (2004, 4.1 MP, fixed lens) DSC-P50 (2001, 2.1 MP, 3× optical zoom) DSC-P51 (2002...

The Canon EOS 80D is a digital single-lens reflex camera announced by Canon on February 18, 2016. It has the same body-only MSRP as the Canon EOS 70D,...

Lens Aboudou (born 9 February 1990) is a French basketball player who currently plays for JDA Dijon Basket of the LNB Pro A. profil www.lnb.fr sports reference...

Canon FL refers to a lens mount standard for 35mm single-lens reflex cameras from Canon. It was introduced in April 1964 with the Canon FX camera, replacing...

changes in the lens (decreased elasticity and increased hardness) and ciliary muscle (decreased strength and ability to move the lens), causing the eye...

Nagareboshi Lens (流れ星レンズ, Nagareboshi Renzu; "Shooting Star Lens") is a Japanese slice of life romance shōjo manga series written and illustrated by Mayu...

interchangeable-lens cameras in its α (Alpha) line. The line has featured cameras employing three different imaging technologies and two mounts: Digital single-lens reflex...

The EF 16–35 mm lens is a family of professional wide-angle lenses made by Canon Inc. The original version, the EF 16-35mm f/2.8L USM, replaced the EF...

Zuiko (Japanese: ズイコー or 瑞光) is a brand of optical lenses made by Olympus Corporation that was used up to and into the Four Thirds system era. The name...

Racing Club de Lens Féminin is a French football club that competes in the Seconde Ligue. The club was founded in 2001 as Arras Football Association, and...

In optics, aberration is a property of optical systems, such as lenses and mirrors, that causes the image created by the optical system to not be a faithful...

6 IS lens, EF-S 17–85mm f/4-5.6 IS USM lens, EF-S 18–135mm f/3.5-5.6 IS lens, EF-S 17-55mm f/2.8 IS USM lens, or an EF-S 18–55mm f/3.5–5.6 lens. Compared...

The Lens-Béthune bus network, more commonly known as Tadao, is a bus network in northern France, centered around the towns of Lens and Béthune. It is the...

camera lens mount system introduced by Leitz in 1964. The R mount is the standard method of connecting a lens to the Leica R series of 35 mm single-lens reflex...

The Canon EF 24–70mm lens is a family of professional EF mount wide-to-normal zoom lenses manufactured and sold by Canon. The first of the family, the...

an English ophthalmologist who invented the intraocular lens and pioneered intraocular lens surgery for cataract patients. Nicholas Harold Lloyd Ridley...

58mm lens option Details [1] Canon developed and produced the Canon FL lens-mount standard for film SLR cameras from 1964 to replace the Canon R lens-mount...

that the "lens has a feature called bellows claw, which is a gear that physically extends and retracts the lens. A piece that holds the lens, the barrier...

is a type of corrective lens used to correct or enhance the visual perception in only one eye. It consists of a circular lens placed in front of the eye...

Lensrentals is the largest camera and lens rental company in the United States. It is based in Memphis, Tennessee, and is owned by The Dude Abides, Inc...

Aspherical IF MC Fisheye is an interchangeable camera lens by Samyang. http://www.dpreview.com/products/samyang/lenses/samyang_8_3p5/specifications v t e...

17–55mm f/2.8 IS USM is a standard zoom lens for Canon digital single-lens reflex cameras with an EF-S lens mount. The field of view has a 35 mm equivalent...

is a lens mount for Fujifilm interchangeable lens mirrorless cameras in its X-series, designed for 23.6mm x 15.6mm APS-C sensors. Various lens manufacturers...

or if the lens or cornea is flatter than normal. Changes in refractive index of lens, alterations in position of the lens or absence of lens are the other...

eyeglasses, contact lenses, or by refractive surgery. Eyeglasses are the simplest and safest method of correction. Contact lenses can provide a relatively...

wide-angle prime lens for the Sony E-mount, announced by Sony on June 11, 2010. Despite featuring the shortest focal length of any prime lens manufactured...

The E-mount is a lens mount designed by Sony for their NEX ("New E-mount eXperience") and ILCE series of camcorders and mirrorless cameras. The E-mount...

others use an array of sensors. Most modern SLR cameras use through-the-lens optical sensors, with a separate sensor array providing light metering, although...

distance compared to the larger "HCD" lens mount. The company sells an additional adapter to mount HCD lenses onto XCD lens mounts while retaining autofocus...

The Panasonic Lumix G 20mm F1.7 lens is a pancake-style prime lens for Micro Four Thirds system cameras. In the Micro Four Thirds format, it is slightly...

orientation of the plane of focus, the lens plane, and the image plane of an optical system (such as a camera) when the lens plane is not parallel to the image...

is a prime lens introduced by Nikon Corporation in April 2011. The lens is compatible with FX sized sensors as well as DX format. The lens generally received...

The EF 1200 mm f/5.6 L USM is a super-telephoto prime lens that was made by Canon Inc. It uses an EF mount, and is compatible with the Canon EOS camera...

accepts lenses designed for the "Bayonet Konica KM-mount" a copy of the Leica M-mount. Because of this, the Hexar RF can mount and focus lenses designed...

The BBC One "Lens" idents are the current set of on-screen channel identities used on BBC One; soft launched with the channel's Christmas presentation...

The News Lens (Chinese: 關鍵評論網; TNL) is a Taiwanese digital news media organization founded by Joey Chung and Mario Yang in 2013, with multilingual versions...

lantern used in theatre that employs a Fresnel lens to wash light over an area of the stage. The lens produces a wider, soft-edged beam than a spotlight...

simple point-and-shoot cameras and interchangeable-lens cameras such as mirrorless cameras and single-lens reflex cameras (SLRs). They are often comparable...

10–22mm f/3.5–4.5 USM lens is a wide to ultra-wide angle zoom lens for Canon digital single-lens reflex cameras with a Canon EF-S lens mount. The field of...

the Canon EOS 650, a single-lens reflex camera. Since then, EOS has become Canon's flagship series of interchangeable-lens cameras, with at least one new...

Lens, France. Lens won the match 1–0 for their first Trophée des Champions title. 16 August 2026 (2026-08-16) 20:45 CEST Stade Bollaert-Delelis, Lens...

Canon EF-S 18–135mm lens is a standard to short telephoto telezoom for Canon digital single-lens reflex cameras with an EF-S lens mount. The field of...

vision threatening" complication of contact lens wear, which is believed to be strongly associated with contact lens cases. Such infections "are being increasingly...

The Canon EF-M 22mm f/2 STM is an interchangeable wide-angle lens announced by Canon on July 23, 2012. It was not available from Canon USA until the 27th...

his artistic portrait photography. He developed the "Perscheid lens", a soft focus lens for large format portrait photography. Perscheid was born as Nikolaus...

The Canon EOS R10 is a mirrorless interchangeable lens camera produced by Canon. It was announced on May 24, 2022, alongside the Canon EOS R7, and was...

digital camera lens mount since 2011 Nikon F-mount, a 35mm film and digital SLR lens mount since 1959 Nikon S-mount, a 35mm film rangefinder lens mount between...

Through a Lens Darkly is a 2014 American documentary film. Through a Lens Darkly may also refer to: "Through a Lens Darkly" (Daria), a 1999 TV episode...

The M39 lens mount is a screw thread mounting system for attaching lenses to 35 mm cameras, primarily rangefinder (RF) Leicas. It is also the most common...

The Nikon D700 is a professional-grade full-frame digital single-lens reflex camera introduced by the Nikon Corporation in July 2008 and manufactured in...

such as the lens of the eye, and any vision correcting devices, which use optics to focus the image. The eyes of many animals contains a lens that focuses...

The EF 100–300mm refers to three telephoto zoom lenses produced by Canon. They are of the EF lens mount that is compatible with the EOS line of cameras...

spectacles, or colloquially as specs, are vision eyewear with clear or tinted lenses mounted in a frame that holds them in front of a person's eyes, typically...

Bluetooth-enabled, dual lens camera that forged the fixed focus 23 mm wide angle lens of the V570 and V705 for a 38-114mm lens. Unlike the V570, it did...

The Canon EOS 90D is a digital single-lens reflex (DSLR) camera released by Canon on August 28, 2019. It has a body-only MSRP of US$1199, which is the...

The Nikon F3 is Nikon's third professional single-lens reflex camera body, preceded by the F and F2. Introduced in March 1980, it has manual and semi-automatic...

of Konica Minolta A-mount lenses: Notes All lenses are designed cover the 35mm format with the exception of the "DT" lenses (11–18, 18–70 and 18–200)...

called Canon EOS Kiss M in Japan, is a digital mirrorless interchangeable-lens camera announced by Canon on February 25, 2018 and sale began on March 23...

digital camera launched on 11 May 2010. It is a mirrorless interchangeable lens camera with the body size of a larger model fairly compact point-and-shoot...

EF mount wide-to-normal zoom lens which was introduced in 1988. In 1990 Canon announced the EF 35-135mm f/4-5.6 USM lens, featuring a different optical...

possibly the first person to shoot a moving picture sequence using a single lens camera and a strip of (paper) film. He has been credited as the "Father of...

The Samyang 8mm f/3.5 fisheye is a fisheye photographic lens using the stereographic projection and is designed for crop factor APS-C DSLRs. It is made...

Photographs are now created using a smartphone or camera, which uses a lens to focus the scene's visible wavelengths of light into a reproduction of...

The SMC Pentax-DA 50mm f/1.8 lens is a normal prime lens for the Pentax K-mount. The 75mm equivalent focal length on APS-C cameras and fast f/1.8 aperture...

500mm F8.0 MC Mirror is a supertelephoto lens and is designed for full frame DSLRs. It is a mirror lens. The lens is made in South Korea by Samyang Optics...

The Canon AE-1 is a 35 mm single-lens reflex (SLR) film camera for use with interchangeable lenses, manufactured by Canon Camera K. K. (today Canon Incorporated)...

Wrong Is Right, released in the UK as The Man with the Deadly Lens, is a 1982 American political satire comedy thriller film directed, written, and co-produced...

The EF 85mm lenses are a group of medium telephoto prime lenses made by Canon Inc. that share the same focal length. These lenses have an EF type mount...

Biotar 58mm ƒ/2 lens produced under the Helios lens brand. The lens was made in the Soviet Union and Russia, primarily for the M42 lens mount. Source:...

USM lens is a professional wide-angle lens made by Canon Inc. It was announced on February 5, 2015, and at that time was the widest rectilinear lens ever...

US there is an unusual two lens kit option offered only with the black body. The 18–55 mm lens has VR but the second lens being a 70–300 mm is the non-VR...

mirrorless interchangeable-lens cameras (with the exception of Samsung NX mini that sports a 1-inch sensor) with Samsung NX lens mounts from Samsung Electronics...

seven super-telephoto lenses made by Canon. These lenses have an EF mount that work with the EOS line of cameras. These lenses are widely used by sports...

contact lenses, eyeglasses and sunglasses headquartered in Vancouver, British Columbia. The company, founded in 2000, is a subsidiary of the French lens manufacturer...

The EF28-200mm f/3.5-5.6 USM lens was a superzoom lens made by Canon Inc. The lens has an EF-type mount, which fits the Canon EOS line of cameras. Due...

One common application of ultrasonic motors is in camera lenses where they are used to move lens elements as part of the auto-focus system. Ultrasonic motors...

lens mount between 1960 and 1965 Konica AR-mount, 35mm SLR lens mount between 1965 and 1988 Konica KM-mount, 35mm Leica M-compatible rangefinder lens...

photographic lenses. Kiron was based in Carson, California, operating in the 1980s primarily as the United States distributor of Kiron lenses, which were...

The Canal de Lens (French pronunciation: [kanal də lɑ̃s]) is a canal in northern France. It connects Lens to the Canal de la Deûle west of Oignies. It...

lens and brain that removes excess glucose by converting it to sorbitol. Sorbitol accumulation can lead to the development of cataracts in the lens and...

Depth of focus is a lens optics concept that measures the tolerance of placement of the image-capturing plane (the plane of an image sensor or a film in...

cornea and lens. UVB light (< 315 nm) is filtered mostly by the cornea, and UVA light (315–400 nm) is filtered mostly by the lens. The lens also yellows...

The HD Pentax-D FA* 70–200mm f/2.8 ED DC AW lens is a professional telephoto zoom lens for the Pentax K-mount. Announced jointly with the HD PENTAX-D FA...

Trifocals are eyeglasses with lenses that have three regions which correct for distance, intermediate (arm's length), and near vision. John Isaac Hawkins...

The Canon EF 800mm f/5.6L IS USM lens is a super-telephoto lens by Canon Inc., released at a manufacturer's suggested retail price of US$11,999.00 and...

Microsoft HoloLens is an augmented reality (AR)/mixed reality (MR) headset developed and manufactured by Microsoft. HoloLens runs the Windows Mixed Reality...

three interchangeable, fixed focal length lenses in 1978. A further three lenses (including one zoom lens) were added in 1981 to coincide with the release...

15–85mm f/3.5–5.6 IS USM is a standard zoom lens for Canon digital single-lens reflex cameras with an EF-S lens mount. The field of view has a 35 mm equivalent...

with a lens in one end and film at the other. They were sold in large numbers from the late 19th until the middle 20th centuries. The lenses are often...

A-mount-compatible auto-focus lens mount for APS-C and full-frame digital SLR/SLT/ILCA cameras since 2006 (1985) Sony E-mount, a lens mount for APS-C and full-frame...

The Virbhadra-Ellis lens equation in astronomy and mathematics relates to the angular positions of an unlensed source ( β ) {\displaystyle \left(\beta...

medium format single-lens reflex system camera manufactured by Pentax. It was introduced in 1984, along with a complementary line of lenses. It captures images...

focusing. The lens is made mostly of metal and the rubber sealed rear mount makes the lens partially dust and water resistant. Dimensions of the lens are 85...

F4.5-5.6, is a telephoto zoom photographic lens compatible with cameras using the Minolta AF and Sony α lens mounts. The first generation body is made...

The Leicaflex series of high-end single-lens reflex 35 mm format film cameras were introduced by Leitz Camera in 1964. The first camera body was paired...

salinity has impacted the density of the water column. For lenses (such as eye glasses), a lens made from a high refractive index glass will be thinner,...

Canon FL 300mm lens refers to two telephoto prime lenses made by Canon. The lenses have an FL type mount which fits the Canon FL line of cameras. First...

Gregory Joseph Lens (March 11, 1945 – November 18, 2009) was an American professional football defensive tackle. Lens was born in Marshall, Minnesota,...

as the EOS Kiss Digital N, is an 8.0-megapixel entry-level digital single-lens reflex camera manufactured by Canon. The model was initially announced in...

1974–75 was its 58th edition. It was won by AS Saint-Étienne which defeated RC Lens in the Final. 7 June 1975 Parc des Princes, Paris Attendance: 45,927 Referee:...

capsule of the crystalline lens of the eye. The most common forms of cataract surgery remove nearly all of the crystalline lens but do not remove the peripheral...

is an interchangeable camera lens announced by Samyang on April 28, 2014. http://www.dpreview.com/products/samyang/lenses/samyang_300_6p3_slr/specifications...

Super-Cinelux motion picture lenses. It is best known as manufacturers of large format lenses for view cameras, enlarger lenses, and photographic loupes....