Re: Official: Sony A7 and A7R Fullframe Mirrorless
mco_970 wrote: uhoh7 wrote: mco_970 wrote: sflxn wrote:
I couldn\'t figure out what you meant by SY 15. I was talking about the 10-18 on the A7R. On my NEX 7, this lens is wonderful. You can get a slight magenta cast once in awhile, but that doesn\'t bother me.
@sflxn - I did a small comparison of 10-18 on 5N @ 10mm versus A7 @15mm, on tripod, OSS off, f/4, f/5.6, f/8.
A7 loses a bit in the wee corners to 5N, but seems to have has a larger central zone of sharpness. I can post crops if anyone cares other than me.
I care
I think you can open these in tabs to see them easily. Interested to know what you think. The crops are 15mm @ f/8 on A7 vs. 10mm @ f/5.6 on 5N, tried to hit the sweet spot on both sensors for sharpness. No processing on the files, just the RAW deal. I know there\'s a big white dust bunny in the A7 shot.
The A7 seems OK in this shot--within reason--but not as good as the APS-C, however what would really be interesting is to do the same thing, when you have a chance, outdoors, at infinity with details in the distance.
That\'s when smearing is most likely and easiest to see. The rear element, as sebboh taught me, is then closest to the sensor.
Distortion is also much more evident in the A7: one wonders how the lens will do in crop mode.
Dec 17, 2013 at 01:02 PM
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