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The Canon EF 15mm f / 2.8 was a fisheye lens produced by Canon from 1987 to 2011. The lens was compatible with all EF camera bodies but only intended for full-frame configurations, as the fisheye effect is much less pronounced with a cropped sensor . In 2010 Canon announced the EF 8–15mm f / 4L Fisheye USM which replaced the EF 15mm f / 2.8. [2]
A fisheye lens is an ultra wide-angle lens that produces strong visual distortion intended to create a wide panoramic or hemispherical image. [4][5]: 145 Fisheye lenses achieve extremely wide angles of view, well beyond any rectilinear lens. Instead of producing images with straight lines of perspective (rectilinear images), fisheye lenses use ...
Canon EF 8-15mm lens. The EF8–15mm f/4L FISHEYE USM is a fisheye zoom lens for Canon digital single-lens reflex cameras (DSLRs) with an EF lens mount. It delivers 180° diagonal angle of view images for all EOS SLR cameras with imaging formats ranging from full-frame to APS-C, and provides 180° circular fisheye images for full-frame EOS models.
Peleng 3.5/8A is an 8 mm super-wideangle circular fisheye photographic lens, and is designed as an interchangeable lens for Canon, Nikon, Pentax, Olympus digital or film cameras which have or do not have the instant-return diaphragm automatic control device [clarification needed]. The lens has a variable diaphragm from f/3.5 to f/16.
Canon NS (1939) New Standard. A Canon S without the slow shutter speeds. Canon J (1939) J stands for Junior a non-rangefinder model. Canon J II (1946) Similar if not the same as prewar cameras. Canon S (1946) Similar if not the same as prewar cameras. Canon S II (1946) A redesign with combined range finder and viewfinder functions – two windows.
When used with a compatible lens, they will multiply the focal length of the lens by a factor of either 1.4x or 2x, at the cost of decreasing the lens' aperture by 1 or 2 stops respectively. For example, using a 1.4x or 2x extender with the Canon EF 500mm f/4L IS USM would result in a 700mm f/5.6 or 1000mm f/8 lens.
Canon New FD lens mounting surface.. The FD lens mount is a breech-lock mount, which is a variation of the common triple-flanged bayonet attachment. The advantage of the breech-lock over the bayonet is that neither the contact surfaces between the body and lens, nor the signalling mechanisms, rotate against each other when the lens is mounted.
That lens was the Canon EF 70-300mm f/4-5.6L IS USM. Canon in 2011 made the first fisheye zoom lens, both circular and rectangular. That lens was the Canon EF 8-15mm f/4L Fisheye USM. Canon in 2012 made the first wide angle lens with Image Stabilization. That lens was the Canon EF 24mm f/2.8 IS USM.
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