05-19-2011, 08:05 AM
[quote name='xiaomeng' timestamp='1305791211' post='8591']
Thanks for hard review.
Why the vignetting and CA on D7000 higher than D200?
[/quote]
vignetting higher due to difference in tonal curves, it gets done with standard JPEG. So, that makes vignetting not cross camera comparable, with dpreview. Not an issue, once you know that.
The CA is higher by the nature of measuring in the first place: If you have a higher pixel density, and you measure CA by pixel size, CA will be higher in "value" with the camera with a higher pixel density.
Anyway, the way of measuring CA seems to not be fault free, as at times there are unexplainable differences between measured CA between Klaus' and Markus' results..
But here, it can simply be explained by difference in pixel density.
Thanks for hard review.
Why the vignetting and CA on D7000 higher than D200?
[/quote]
vignetting higher due to difference in tonal curves, it gets done with standard JPEG. So, that makes vignetting not cross camera comparable, with dpreview. Not an issue, once you know that.
The CA is higher by the nature of measuring in the first place: If you have a higher pixel density, and you measure CA by pixel size, CA will be higher in "value" with the camera with a higher pixel density.
Anyway, the way of measuring CA seems to not be fault free, as at times there are unexplainable differences between measured CA between Klaus' and Markus' results..
But here, it can simply be explained by difference in pixel density.