Could you also test auto focus accuracy using a data source to quantify the variation and accuracy?
I tested my Sony A6000 auto focus using Focus Tune. I haven\'t posted the charts, because I want to go back and test more extensively with different settings. But I saw a lot more variation and less accuracy than I would have expected, based on \"theory.\"
Here are some Focus Tune reports that show the Shot to Shot variation, usually with 10 shots. The first is with the Sony 50 1.8 E mount, the second with the Sony FE 28-70, both on the A6000. The 3rd is a comparison with the Nikon D5300 and a Sigma 17-50 2.8 OS at 50 mm.
It would be interesting to see how accurate (how close to \"perfect\" focus it is) and how precise (how much variance there is shot to shot) the A7RII auto focus is with different lenses, in a quantifiable manner.
Could you also test auto focus accuracy using a data source to quantify the variation and accuracy?
I tested my Sony A6000 auto focus using Focus Tune. I haven\'t posted the charts, because I want to go back and test more extensively with different settings. But I saw a lot more variation and less accuracy than I would have expected, based on \"theory.\"
Here are some Focus Tune reports that show the Shot to Shot variation, usually with 10 shots. The first is with the Sony 50 1.8 E mount, the second with the Sony FE 28-70, both on the A6000. The 3rd is a comparison with the Nikon D5300 and a Sigma 17-50 2.8 OS at 50 mm.
It would be interesting to see how accurate and how precise the A7RII auto focus is with different lenses, in a quantifiable manner.
Cheers!
Michael
Aug 03, 2015 at 11:54 PM
Previous versions of mmurph's message #13133871 « A7RII 12-bit mode. How to avoid it. »
