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If the square format images are cropped to an equivalent 3:2 aspect ratio, the resulting 56.5×37.7 mm (2.22×1.48 in) images would have an equivalent focal length multiplier of 0.64, so the 80 mm lens has the equivalent angle of view as a 50 mm lens on a 135 film camera.
Kiron Corporation was a subsidiary of Kino Precision Industries, Ltd., a Japanese manufacturer of photographic lenses.Kiron was based in Carson, California, operating in the 1980s primarily as the United States distributor of Kiron lenses, which were offered in a variety of mounts compatible with many popular 135 film manual focus single-lens reflex camera systems.
It was manufactured until the 1960s and over 100,000 units were produced, making it one of the most common Leica wide-angle lenses ever made. The lens was then discontinued in 1963 just before the first 28mm f/2.8 Elmarit became available for the M cameras. [1] The Summaron name was revived in 2016 when the 28 mm f/5.6 was released. [2]
The Canon TS-E 24 mm f / 3.5L II is a tilt-shift, wide-angle prime lens that provides the equivalent of the corresponding view camera front movements on Canon EOS camera bodies. Though it uses Canon's EF lens mount , it does not provide autofocus .
The first regular production Biogon lenses were produced from 1954 as the 4.5 / 21 mm for Contax, in 1954, 4.5 / 38 mm for Hasselblad Super Wide, and from 1955 to 1956 as the 4.5 / 53 mm and 4.5 / 75 mm for Linhof. The original patent spanned three different variants, each with a different maximum aperture: f / 6.3, f / 4.5, and f / 3.4 lenses. [9]
The Canon FD 135mm f/3.5 S.C. (I) lens. Several different models of Canon FD 135 mm lenses were produced by Canon Inc. for the Canon FD lens mount.Two were produced in the original "Old FD" style with a silver locking ring for the breech lock mount at the base, while three models were produced as "New FD" lenses where the entire lens barrel rotated to lock the lens in place.
The AF-S DX Zoom-Nikkor 18-70mm f /3.5–4.5 G ED-IF is an F-mount zoom lens manufactured and sold by Nikon. Designed exclusively for use on Nikon DX format cameras, this lens covers from wide-angle to medium-telephoto range. This lens was announced in January 2004 [2] and was initially available as kit lens for the then-new Nikon D70. Later ...
The lightmeter is activated by a lever on the side of the camera, which also stopped down the lens. A Mercury battery (1.35 V Mallory RM640) was used to power the light metering system; however due to the way the circuit is designed, 1.5 V silver oxide batteries can be used instead.