Hi all,
I am currently finishing the 70-200mm f/4 G OSS test.
I had to take extra (bizarre) measurements to test this lens due to the massive impact of the A7R's shutter. The effect was also reflected in the results of the field session.
At around 1/50-1/200sec the shutter has a significant blurring effect on the results with a correspondingly low yield rate.
I would therefore like to make the clear recommendation to stay away from the A7R - it is a flawed camera - and consider the A7 (with shutter set to electronic first curtain) or the upcoming A7s (with full electronic shutter) instead. It is unlikely that Sony will be able to fix this via firmware.
If you already own an A7R I would recommend to set your ISO in a way to achieve shutter speed of 1/400sec or faster in order to minimize the effect.
Klaus
PS: Nice lens ...
I am currently finishing the 70-200mm f/4 G OSS test.
I had to take extra (bizarre) measurements to test this lens due to the massive impact of the A7R's shutter. The effect was also reflected in the results of the field session.
At around 1/50-1/200sec the shutter has a significant blurring effect on the results with a correspondingly low yield rate.
I would therefore like to make the clear recommendation to stay away from the A7R - it is a flawed camera - and consider the A7 (with shutter set to electronic first curtain) or the upcoming A7s (with full electronic shutter) instead. It is unlikely that Sony will be able to fix this via firmware.
If you already own an A7R I would recommend to set your ISO in a way to achieve shutter speed of 1/400sec or faster in order to minimize the effect.
Klaus
PS: Nice lens ...