photo:canonef200mmf2.8
Canon EF 200mm f/2.8L lenses
introduction
Canon EF 200mm f/2.8L II released in 1996 to update the version I lens and replaced the built-in hood with a snap on hood but otherwise they are similar lenses
a favourite amongst astrophotographers on APS-C cameras
mark II is overdue for a replacement to address lack of weathersealing, no rounded aperture blades, and is less sharp than a
70-200mm zoom but at least it is less than half the price and weight
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specs
200mm f/2.8 full frame
8 non-rounded blades
9 elements in 2 groups inc. 2x UD elements
72mm filter
internal focus with rear focusing to correct aberrations
close focus 1.5m giving 1:5 magnification
USM AF
83 x 136 mm
765 g
lens hood
not weathersealed
reviews
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0.76% pincushion distortion
0.9EV vignetting
sharp wide open but sharpest at f/5.6
minimal lat CA of 0.5px
nice bokeh although a tad nervous at critical focus transition zones and out-of-focus circles become cat's eyes in corners due to vignetting
medium long. CA
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excellent coma - this is why astrophotographers love it!
mild astigmatism 7.6%
not quite as sharp as the Canon EF 70-200 mm f/2.8L IS USM II but much lighter, smaller, cheaper and better vignetting, flare and slightly better CA and distortion
bokeh can be nervous at transition zones and can give cat's eye oval shapes
photo/canonef200mmf2.8.txt · Last modified: 2017/11/18 09:26 by gary1