05-20-2012, 04:41 PM
[quote name='Klaus' timestamp='1337526324' post='18353']
I do not know for sure. The 16mp sensor of the K5 is not much different than the 10mp sensor of the K10D.
The AA filter characteristic is very different though. The K10D AA filter has no vertical filtering at all so the border performance figures can be different if the sagittally or tangentially is emphasized.
The center resolution characteristic may be different due to the different RAW profile of the cameras although I am surprised about the difference.
[/quote]
AA filter characteristic which may explain at least part of the results.
AA filter could affect only at sharpness and WHOLE resolution of system, which 2750 LW/PH for K-5. AA filter has no any affect at the drop of resolution of lens at 16 MP vs 10 MP. Klaus, it's strange to hear such explanation from you.
I have K200D with weak AA filter (more than 4 year) and K-5 (1 year). I don't see than K-5 has much thicker AA filter.
Thicker, but just a bit. I use C1 Pro.
As for strange corner result of FA43 at K-5 - it seems to me - it's lens variation - you got strange sample with good center and bad corners. Pay attention - FA43 is soft at center at f1.9 at K10D, but MUCH better at K-5 - I see the same at my cameras.
As for corners - I'm puzzled. FA43 is one of the sharpest lens at my K200D and the same at K-5.
I do not know for sure. The 16mp sensor of the K5 is not much different than the 10mp sensor of the K10D.
The AA filter characteristic is very different though. The K10D AA filter has no vertical filtering at all so the border performance figures can be different if the sagittally or tangentially is emphasized.
The center resolution characteristic may be different due to the different RAW profile of the cameras although I am surprised about the difference.
[/quote]
AA filter characteristic which may explain at least part of the results.
AA filter could affect only at sharpness and WHOLE resolution of system, which 2750 LW/PH for K-5. AA filter has no any affect at the drop of resolution of lens at 16 MP vs 10 MP. Klaus, it's strange to hear such explanation from you.
I have K200D with weak AA filter (more than 4 year) and K-5 (1 year). I don't see than K-5 has much thicker AA filter.
Thicker, but just a bit. I use C1 Pro.
As for strange corner result of FA43 at K-5 - it seems to me - it's lens variation - you got strange sample with good center and bad corners. Pay attention - FA43 is soft at center at f1.9 at K10D, but MUCH better at K-5 - I see the same at my cameras.
As for corners - I'm puzzled. FA43 is one of the sharpest lens at my K200D and the same at K-5.