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Though designed for Sony's full frame E-mount cameras, the lens can be used on Sony's APS-C E-mount camera bodies. [ 2 ] The 70-300mm F4.5-5.6 G lens is one of the least expensive G-series lens Sony makes, is popular among weight-sensitive landscape photographers, wildlife photographers, and hobbyists who want G-lens quality and the extra reach ...
The 300 mm f /2.8 APO was introduced in 1985 as one of the original dozen lenses released with the Maxxum/Dynax 7000. [1] Like contemporary Canon FD super-telephoto lenses, it was available exclusively with a white finish to reflect the sun, minimizing the effect of thermal expansion on optical alignment, [2] and carried a gold ring towards the front of the lens, [3]: 37 designating it as a (G ...
The Tamron 28-300mm F/3.5-6.3 Di VC PZD (Model A010) is an interchangeable superzoom full-frame DSLR camera lens announced by Tamron on February 6, 2014 [7] and released in late June 2014 for the Canon and Nikon mounts and on 30 October 2014 for the Sony mount. [4]
The first generation body is made of metal. It was launched alongside the Minolta Maxxum 9000 in fall 1985. [1] There is a focus limiter switch to speed up focusing. This lens and the Minolta AF 70-210mm f/4 lens are colloquially known as the "big beercan" and "beercan", respectively, by Minolta camera users because their shape and size closely match the proportions of a typical aluminum drink ...
The B4 lens mount was standardized in 1992 by the Broadcasting Technology Association (BTA) and is defined in BTA S-1005. [1] This standard defines the physical mount, but also optical properties and some electrical connections.
For example, a 28 mm lens delivers a moderately wide-angle FOV on a 35 mm format full-frame camera, but on a camera with a 1.6 crop factor, an image made with the same lens will have the same field of view that a full-frame camera would make with a ~45 mm lens (28 × 1.6 = 44.8). This narrowing of the FOV is a disadvantage to photographers when ...
Stepwise magnification by 6% per frame into a 39-megapixel image. In the final frame, at about 170x, an image of a bystander is seen reflected in the man's cornea. Magnification is the process of enlarging the apparent size, not physical size, of something. This enlargement is quantified by a size ratio called optical magnification.
A 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 images produced by a telecentric lens is insensitive to either the distance between an object being imaged and the lens, or the distance between the image plane and the lens, or both, and ...
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