[Guest]

[quote name='Klaus' timestamp='1337448525' post='18334']

I am still not impressed by this lens.

[url="http://www.opticallimits.com/pentax/736-pentax43f19k5"]http://www.opticallimits.com/pentax/736-pentax43f19k5[/url]



The difference towards the MTFs in the initial review is somewhat puzzling.



Klaus

[/quote]



it's unreal - for example

at K10D - f2.8 corner - 1993 LW/PH

at K-5 - f2.8 corner - 1743 LW/PH



The same situation at f4-5.6.



10 MP is always lower than 16 MP. The maximum resolution of system - camera+lens+soft of higher MP couldn't be lower <img src='http://forum.photozone.de/public/style_emoticons/<#EMO_DIR#>/smile.gif' class='bbc_emoticon' alt='' />

Any lens of any system will show higher resolution at 16 MP camera than at 10 MP.



FA43 coudn't be worse at 16 MP than at 10 MP. In the worst case the resolution could be almost the same in test. But not lower.



1993 LW/PH is very good resolution at 10 MP, the drop of 250 LW/PH at 16 MP camera indicates that Klaus has no good sample of lens.

I have K200D and K-5, my FA43 is sharper at K-5 at all apertures. The center and corners. It's fact.