Canon EF 400mm f2.8L IS II USM review: Canon’s Big Gun…
By Ben Boswell -
Tuesday April 16 2013
The Canon EF 400mm f2.8L IS II USM is one of the sharpest Canon lenses scoring 21 P-Mpix when measured on a Canon EOS 5D Mk III. This negligible difference between the sensor Mpix and the perceived sharpness is excellent. All of the measurements are good: the transmission is very slightly slower than stated; there is one tenth of one percent distortion! Too little to see and vignetting at 1.1EV is manageable, easily fixed with DxO Optics Pro. This is a top quality lens.
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Added by allcon
April 17, 2014
1dx 1ds mk2 results
Could you test the canon super tele prime lenses on 1dx and 1ds mk2 bodies plz? the 1ds mk2 VS nikon D4 makes a better sharpness comparison, the 1dx vs D4 (D4s) gives a up to date comparison, both makes sense.
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First replies for this comment
Added by Sophie
April 30, 2014
Re: 1dx 1ds mk2 results
This is an interesting suggestion, and even if the 1dX is a bit old now we will try to add it in our database (it might take some time though!).
"a wide 400mm lens"
That's an oxymoron.