IQ of 7d w 15-85mm Vs 6d w 24-105mm?

Started Mar 8, 2013 | Questions thread
Mako2011
Mako2011 MOD
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In reply to qianp2k, Mar 11, 2013

qianp2k wrote:

usedtobedontrustme wrote:

qianp2k wrote:

24-105L on 6D will have much better IQ - sharper, resolve more details, better color tonality, better DR, better SNR (which means less noises/grains in entire ISO range) and of course much better high ISO.

DXOMark 24-105 on 5D2 vs 15-85 on 7D

DXOMark 6D vs 7D sensor test

DXO says the 6d & lens combo has 50% better sharpness. That is huge and I hope that is accurate. 20% better sharpness would be worth it to me.

The reason FF set is sharper is because it has 1.6x less pixel magnfication.

That would indicated a misunderstanding of the things that affect sharpness. Perhaps related to the cloak surrounding M-pix. First, it is important to compare systems at the same DOF when discussing sharpness. You may have not considered that. To compare sharpness you need to start from  Equivalent photos.  DXO is not doing that. While the overall sharpness is often the same or better with FF, the issue of evenness of frame needs to be considered, and taken on a lens-by-lens basis as well as comparing like photos. Your examples do not do that and DXO makes many of the same mistakes in presentation. Their strike zone is very large...nice for tee ball but not as useful for a fast pitch game game.

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