DXOMark compares the 55-250 II vs I

Started Dec 15, 2011 | Discussions thread
bronxbombers
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In reply to photoPhlow, Dec 17, 2011

photoPhlow wrote:

http://www.dxomark.com/index.php/Lenses/Compare-Camera-Lenses/Compare-lenses/%28lens1%29/408/%28brand%29/Canon/%28camera1%29/436/%28lens2%29/255/%28brand2%29/Canon/%28camera2%29/436#div1anchor

According to the DxO tests, the resolution of the 70-200 f/2.8L IS II is crap compared to the f/4 . I have not seen that result anywhere else. I just bought my 70-200, and I like it, though I haven't done critical resolution tests yet.

Is DxO Mark trustworthy?

they have so many weird lens results i'm not sure i trust their lens data whatsoever try:

at 200mm 2.8:
70-200 2.8 IS > 70-200 2.8 non-IS > 70-200 2.8 IS MkII ??!?

at 300mm f/5.6:
70-300 IS non-L > 70-300 IS L > 300 f/4 IS L ??!??

the 16-35mm L is much sharper at the corners at f/2.8 than at f/5.6 ?!!??

and so on

their canon sensor data generally seems to be pretty solid though (not the overall ratings, the plots)

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