Cross platform equivalency

Started 3 months ago | Discussions thread
qianp2k
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Re: Joe, in the studio, I find larger format has less benefit for me.
In reply to Silverback1988, 3 months ago

Silverback1988 wrote:

qianp2k wrote:

I own 70-200L II and 5D2 and used to own 60D. 5D2 is clearly sharper than 60D with the same EF lenses (any EF lenses) including 70-200L II if both fill the subjects into the same AOV.

Dang, I should upgrade my eyes

My eyes consider the sharpness are about the same. The DOF is my main worry there.

Outside the DOF, the blur take the sharpness heavily.

No problem with the sharpness within the DOF, even if it is done with 7D.

APS-C sensors enlarge pixels 1.6x more to project on the output at the same size on so-called crop penalty.

Maybe the lens sharpness is still up to it, Peter ?

Depends on what you shoot. In studio portrait, usually you applied some smoothness so skin will look better and smoother where you might not see much difference. But if you shoot two cameras outside in landscape with lots of fine details, you will see noticeable difference when you fit them into the same AOV.

http://www.dxomark.com/Lenses/Compare/Side-by-side/Canon-EF70-200mm-f28L-IS-II-USM-on-Canon-EOS-5D-Mark-II-versus-Canon-EF70-200mm-f28L-IS-II-USM-on-Canon-EOS-7D-versus-Canon-EF70-200mm-f28L-IS-II-USM-on-Canon-EOS-5D-Mark-III___408_483_408_619_408_795

You can see with this zoom, 5D2 has peak 18mpx (will be 21mpx on 5D3) while 7D has peak 12mpix, that is not a small difference.

Here is 5D2 with kit zoom 24-105L at 5000-pixel wide. Don't believe 7D/60D with comparable zoom EF-S 17-55/2.8 IS or EF-S 15-85/3.5-5.6 IS or the same 24-105L could deliver similar sharpness at this size.

24-105L on 5D2, 5000-pixel wide

70-200L II on 5D3 hand-held, 2500-pixel wide

This 70-200L II zoom is very sharp and will resolve noticeable more if Canon releases a mega-pixel camera.  Even its little brother 70-200L/4.0 IS is pretty sharp.  Here is a sample with 36mp A7R thru adapter hand-held.

70-200L/4.0 IS on A7R hand-held, 5000-pixel wide

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