Thom Hogan's review of the A7/A7r

Started 6 months ago | Discussions thread
JimKasson
Contributing MemberPosts: 674Gear list
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Re: Can you elaborate
In reply to Jeff Kott, 6 months ago

Jeff Kott wrote:

You might want to look at Jim Kasson's blog for some real experimentation on hand holding and the A7r:

http://blog.kasson.com/

His testing shows that you won't be worse off hand holding the A7r than the A7. In either case, your resolution would certainly be better than with your 16 mp camera.

Jeff, you are oversimplifying my results. I found that, with the Zony 55 and the cameras in landscape orientation, I got better sharpness, as measured by slanted-edge-derived MTF50, for horizontal edges (which are the hardest for the a7R because of the direction the shutter moves, and the best for the a7, because of the anisotropic nature of the a7's AA filter) with the a7 at 1/125 and 1/250, than I did for the a7R.

http://blog.kasson.com/?p=5175

As an aside, I found the D800E's mirror slap to be at least as problematic, and probably more, although the effect mostly occurs at lower shutter speeds.

http://blog.kasson.com/?p=5188

Jim

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