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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]
The Large Binocular Telescope at the Mount Graham International Observatory in Arizona uses two curved mirrors to gather light. An optical telescope is a telescope that gathers and focuses light mainly from the visible part of the electromagnetic spectrum, to create a magnified image for direct visual inspection, to make a photograph, or to collect data through electronic image sensors.
11 100 25600 4 3 yes yes SD: 127x97x79 560 (without battery) Apr 2011: Nikon: D5000: APS-C: 12.3 F-mount: 95 420 11 100 6400 4 2.7 yes yes SD: 127x104x80 560 (without battery) Apr 2009: Nikon: D3200: APS-C: 24.2 F-mount: 95 420 11 100 12800 4 3 yes yes SD: 125x96x79 505 Apr 2012: Nikon: D3100: APS-C: 14.2 F-mount: 95 420 11 100 12800 4.4 3.2 ...
A 50 mm lens on an APS-C format (crop factor 1.6) images a slightly smaller field of view than a 70 mm lens on a 35 mm camera. The terms crop factor and focal length multiplier were coined to help 35 mm film format SLR photographers understand how their existing ranges of lenses would perform on newly introduced DSLR cameras which had sensors smaller than the 35 mm film format, but often ...
A common size for cells inside cordless tool battery packs. This size is also used in radio-controlled scale vehicle battery packs and some Soviet multimeters. 1 ⁄ 2-, 4 ⁄ 5 - and 5 ⁄ 4-sub-C sizes (differing in length) are also available. Soviet 332 type can be replaced with R10 (#4, 927, BF, U8) or 1.5 V elements from 3 V 2xLR10 packs ...
Indian Runner ducks vary in weight between 1.4 and 2.3 kg (3.1 and 5.1 lb). Their height (from crown to tail tip) ranges from 50 cm (20 in) in small females to about 76 cm (30 in) in the taller males.
The Mamiya C series is a line of twin-lens reflex medium-format system cameras manufactured by Mamiya between 1956 and 1994. It was developed from the Mamiyaflex series of cameras built from 1949 to 1956.
Blade Runner 2049 – Original Motion Picture Soundtrack is the soundtrack album for the 2017 film Blade Runner 2049. Released in October 2017, the album contains music composed by Hans Zimmer and Benjamin Wallfisch , along with additional tracks by Elvis Presley , Frank Sinatra and Lauren Daigle .