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Front and rear views of a Canon EF50mm f/1.4 USM. The EF 50mm lenses are a group of normal prime lenses made by Canon that share the same focal length.These lenses are based on the classic double-Gauss lens, [1] with the f/1.8 being a standard six-element double-Gauss with an air gap and powers between element 2 and 3 [1] and its faster cousins adding additional elements. [2]
Canon RF 10-20mm F4L IS STM: 2023-10-11 5 stage stabilizer: 10 20 112 83.7 570 22 0.25 0.12 Canon RF-S 10-18mm F4.5-6.3 IS STM: 2023-11-02 4 stage stabilizer: 10 18 49 44.9 69 150 22 32 0.086 0.14 0.5 Canon RF 14-35mm F4L IS USM: 2021-09-01 5.5 stage stabilizer: 14 35 77 99.8 84.1 540 22 0.2 0.38 Canon RF 15–30mm F4.5–6.3 IS STM: 2022-08-01 ...
This lens was introduced on February 21, 2002. [3]On a Nikon DX format DSLR, a 50 mm lens is cropped to the angle of a view of a short telephoto lens (~75 mm equivalent; field-of-view crop is 1.54).
Canon A-1 with a FD 50/1.8 Viewfinder of a Canon A-1. The right number is the current F-number (1.8), meaning that the aperture is fairly wide open. The left number (45) indicates the approximate shutter speed of 45 −1 s (the camera can select odd shutter speeds, but does not display them)
The Canon EF-S 18–55mm lens f / 3.5–5.6 is a Canon-produced wide-angle to mid telephoto zoom lens for digital single-lens reflex cameras with an EF-S lens mount. The field of view has a 35 mm equivalent focal length of 28.8–88mm, and it is a standard kit lens on Canon's consumer APS-C DSLRs.
It starts off "The EF 50mm lens is a normal prime lens made by Canon Inc", implying that it talks about a single lens. In fact, it talks about six completely different lenses. Two of these are no longer in production, so the use of the present tense in the opening sentence seems dubious.
The EF 35mm f / 1.4L II USM is a successor of the EF 35mm f / 1.4L USM. It was announced at the 27th of August 2015 and is available since October same year. [1] The EF 35mm f / 1.4L II USM lens is the first lens in Canon line up to use a Blue Spectrum Refractive Optics element (BR element) to reduce the chromatic aberration at the blue end of the spectrum. [2]
The new Canon EF 100-400mm f/4.5-5.6L IS II USM was announced on 11 November 2014 (10 November in the United States due to time zone differences from Japan), with availability expected the following month. Among the changes from the Mark I version are: [3] [4]