enow.com Web Search

Search results

1. Results from the WOW.Com Content Network

2. Camera lens - Wikipedia

   en.wikipedia.org/wiki/Camera_lens

   A camera lens (also known as photographic lens or photographic objective) is an optical lens or assembly of lenses used in conjunction with a camera body and mechanism to make images of objects either on photographic film or on other media capable of storing an image chemically or electronically. There is no major difference in principle ...

3. Wide-angle lens - Wikipedia

   en.wikipedia.org/wiki/Wide-angle_lens

   A wide-angle lens is also one that projects a substantially larger image circle than would be typical for a standard design lens of the same focal length. This large image circle enables either large tilt & shift movements with a view camera. By convention, in still photography, the normal lens for a particular format has a focal length ...

4. Zoom lens - Wikipedia

   en.wikipedia.org/wiki/Zoom_lens

   A zoom lens is a system of camera lens elements for which the focal length (and thus angle of view) can be varied, as opposed to a fixed-focal-length (FFL) lens . A true zoom lens or optical zoom lens is a type of parfocal lens , one that maintains focus when its focal length changes. [ 1 ]

5. f-number - Wikipedia

   en.wikipedia.org/wiki/F-number

   f-number. Diagram of decreasing apertures, that is, increasing f-numbers, in one-stop increments; each aperture has half the light-gathering area of the previous one. An f-number is a measure of 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 ...

6. Focal length - Wikipedia

   en.wikipedia.org/wiki/Focal_length

   Focal length. Measure of how strongly an optical system converges or diverges light. The focal point F and focal length f of a positive (convex) lens, a negative (concave) lens, a concave mirror, and a convex mirror. The focal length of an optical system is a measure of how strongly the system converges or diverges light; it is the inverse of ...

7. Lens - Wikipedia

   en.wikipedia.org/wiki/Lens

   A burning apparatus consisting of two biconvex lens. A lens is a transmissive optical device that focuses or disperses a light beam by means of refraction.A simple lens consists of a single piece of transparent material, while a compound lens consists of several simple lenses (elements), usually arranged along a common axis.