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The Canon EF 600mm is a super-telephoto lens made by Canon Inc. The lens has an EF mount to work with the EOS line of cameras. f / 4L USM lens was released in November 1988 (923,000 yen). [1] f / 4L IS USM lens was released in September 1999 (1,290,000 yen). [2] f / 4L IS II USM lens was announced in February 2011 (US$12,999 at release, now US ...
The EF 500mm f / 4L IS II USM is the replacement to the EF 500mm f / 4L IS USM. Its specifications are roughly similar to those of the f / 4 Mark I, but have a number of significant differences. The Mark II version contains one fewer lens element than its predecessor (16 as opposed to 17), and is 680 grams (1.50 lb) lighter.
That lens was the Canon EF 75-300mm f/4-5.6 IS USM. Canon in 2001 was the first to create a lens with DO (multi layered Diffractive Optical element) element. That lens was the Canon EF 400mm f/4 DO IS USM. Canon in 2008 created the first lens with SWC technology (Subwavelength Structure Coating). That lens was the Canon EF 24mm f/1.4L II USM.
With a 2× extender a 400mm f/4 lens would have an equivalent focal length of 800mm and a maximum aperture of f/8, in which case autofocus would only be available with professional bodies. With the same converter a 400mm f/5.6 lens would have a maximum aperture of f/11 and autofocus would be disabled.
The Canon EF 16–35mm f/4L IS USM lens with its included EW-82 hood. The EF 16–35 mm lens is a family of professional wide-angle lenses made by Canon Inc. The original version, the EF 16-35mm f/2.8L USM, replaced the EF 17-35mm f/2.8L USM lens, which had itself replaced the EF 20-35mm f/2.8L lens.
f / 2.8L IS II USM [5] [6] f / 4L USM f / 4L IS USM Image Key features Full-frame compatible Yes Image stabilizer No Yes Yes No Yes Ring USM Yes L-series Yes Diffractive Optics No Macro No Technical data Aperture (max-min) f / 2.8-f / 32 f / 4-f / 32 Construction 8 groups / 10 elements 13 groups / 17 elements 12 groups / 16 elements