visible light are also called "lenses", such as microwave lenses, electron lenses, acoustic lenses, or explosive lenses. Lenses are used in various imaging...
69 KB (8,276 words) - 22:52, 15 October 2024
photographer to view through the lens and see exactly what will be captured. With twin lens reflex and rangefinder cameras, the viewed image could be...
28 KB (3,836 words) - 06:00, 13 October 2024
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...
13 KB (1,968 words) - 05:06, 23 July 2024
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...
90 KB (10,878 words) - 00:43, 6 October 2024
progressive addition lenses (PAL), varifocal lenses, progressive power lenses, graduated prescription lenses, or progressive spectacle lenses. The first patent...
11 KB (1,372 words) - 05:12, 13 April 2024
Through a Lens Darkly: Black Photographers and the Emergence of a People is a 2014 documentary film directed by Thomas Allen Harris. It is inspired by...
11 KB (819 words) - 04:13, 6 September 2024
The lens, or crystalline lens, is a transparent biconvex structure in most land vertebrate eyes. Relatively long, thin fiber cells make up the majority...
53 KB (6,529 words) - 01:16, 9 September 2024
lens, sometimes called a folded lens, is a mechanical assembly of lens elements that uses a prism or mirror to redirect the light through the lenses with...
5 KB (403 words) - 22:51, 3 January 2024
view through the main camera lens rather than showing an image through a separate secondary lens. DSLRs largely replaced film-based SLRs during the 2000s...
66 KB (7,820 words) - 01:28, 28 September 2024
artifacts, usually in the shape of the aperture made by the iris diaphragm, are formed when light follows a pathway through the lens that contains one or...
13 KB (1,519 words) - 04:35, 17 August 2024
Through a Blue Lens is a Canadian documentary film produced by the National Film Board of Canada. The film follows interactions between police officers...
7 KB (789 words) - 00:16, 27 August 2024
The Minolta SR-T 101 is a 35mm manual focus SLR camera with Through-The-Lens exposure metering – TTL for short - that was launched in 1966 by Minolta Camera...
7 KB (959 words) - 18:38, 7 April 2024
pentaprism finder that allows for the through-the-lens actual image (90% of actual area) of what is being composed. The camera is completely battery dependent...
30 KB (4,295 words) - 16:34, 26 May 2024
telecentric lens is a special optical lens (often an objective lens or a camera lens) that has its entrance or exit pupil, or both, at infinity. The size of...
10 KB (1,261 words) - 03:28, 7 September 2024
be programmed to prioritize its metering to the same area as one or more of the AF sensors. Through-the-lens optical autofocusing is usually speedier and...
29 KB (3,766 words) - 12:25, 24 September 2024
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:...
53 KB (6,370 words) - 03:32, 18 October 2024
A Luneburg lens (original German Lüneburg lens) is a spherically symmetric gradient-index lens. A typical Luneburg lens's refractive index n decreases...
15 KB (1,969 words) - 16:18, 3 August 2024
Focal length (redirect from Lens focal length)
through the lens. When a lens is used to form an image of some object, the distance from the object to the lens u, the distance from the lens to the image...
19 KB (2,394 words) - 20:48, 17 October 2024
signified on the one hand, and the institutional and organizational forms in which is it routinized and standardized on the other". The lens of looking...
12 KB (1,545 words) - 16:27, 4 August 2024
improved lenses, later versions of which featured multi-coating and were called Super Multi Coated Takumars. The camera used Through The Lens (TTL) light...
11 KB (931 words) - 00:59, 20 March 2024
The EF lens mount is the standard lens mount on the Canon EOS family of SLR film and digital cameras. EF stands for "Electro-Focus": automatic focusing...
53 KB (5,399 words) - 03:47, 9 October 2024
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...
29 KB (4,345 words) - 10:22, 13 March 2024
Film gate (redirect from Hair in the gate)
the film with a projector). The film gate can be seen by removing the lens and rotating the shutter out of the way. The film is held on a uniform plane...
4 KB (638 words) - 09:48, 2 October 2024
Diaphragm (optics) (redirect from Lens diaphragm)
in the light path of a lens or objective, and the size of the aperture regulates the amount of light that passes through the lens. The centre of the diaphragm's...
11 KB (1,330 words) - 12:19, 8 September 2024
The Art of Seduction (2001) is the second book by American author Robert Greene. The book examines social power through the lens of seduction and was an...
18 KB (2,223 words) - 02:44, 23 August 2024
the light-gathering ability of an optical system such as a camera lens. It is calculated by dividing the system's focal length by the diameter of the...
43 KB (5,425 words) - 12:31, 7 October 2024
image that will be seen through the lens, and therefore to see exactly what will be captured, contrary to viewfinder cameras where the image could be significantly...
2 KB (191 words) - 20:42, 12 September 2024
conventional lens by dividing the lens into a set of concentric annular sections. The simpler dioptric (purely refractive) form of the lens was first proposed...
57 KB (6,509 words) - 20:22, 14 September 2024
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...
35 KB (3,441 words) - 03:07, 16 September 2024