This is the third in a series of posts on the Sony a7RIII (and a7RII, for comparison) spatial processing that is invoked when you use a shutter speed of longer than 3.2 seconds. The series starts here. In a comment on the preceding post, Drew Geraci said that there were differences in the dark-field frequency responses… [Read More]
Archives for November 2017
A visual look at a7RIII star-eating
This is the second in a series of posts on the Sony a7RIII (and a7RII, for comparison) spatial processing that is invoked when you use a shutter speed of longer than 3.2 seconds. The series starts here. Several people have said that they aren’t getting much out of the graphs that I posted yesterday showing that… [Read More]
The Sony a7RIII eats stars
This is the first in a series of tests of the Sony a7RIII (and a7RII, for comparison) spatial processing that is invoked when you use a shutter speed of longer than 3.2 seconds. To see the other posts in the series, scroll to the bottom of this page (below the comments) and you see the… [Read More]
D850 vibration with the Nikon 200/2
This is the 25th post in a series of Nikon D850 tests. The series starts here. I did a test of the effect of vibration on image sharpness in the D850 with an 85 mm lens here. There were a few mild surprises, but nothing earth-shaking. I wanted to try the Nikon 200 mm f/2 VR I… [Read More]
D850 focus confirmation accuracy
This is the 24th post in a series of Nikon D850 tests. The series starts here. The D850 has what is touted to be improved accuracy of its focus information indicator. That’s the group of three symbols, two arrows and a meatball, at the bottom left of the optical viewfinder (OVF). If you have a Nikon… [Read More]
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