01-14-2011, 01:58 PM
[quote name='genotypewriter' timestamp='1294950954' post='5481']
However, how the PZ "border" and "extreme border" values are fairly meaningless in practice as I have explained below:
[url="http://www.flickr.com/photos/genotypewriter/5207301499/"]http://www.flickr.co...ter/5207301499/[/url]
GTW
[/quote]
Sorry but that's merely an opinion but not a fact. If a wide or ultra-wide lens has a poor corner performance this is of course relevant. Possibly not for you but it is THE primary criteria for me here. Unlike a tele lens the wide- or ultra-wides have to provide a uniform performance across the frame IMHO. In fact I don't even care for the center performance here - it is always "good enough" here anyway.
However, how the PZ "border" and "extreme border" values are fairly meaningless in practice as I have explained below:
[url="http://www.flickr.com/photos/genotypewriter/5207301499/"]http://www.flickr.co...ter/5207301499/[/url]
GTW
[/quote]
Sorry but that's merely an opinion but not a fact. If a wide or ultra-wide lens has a poor corner performance this is of course relevant. Possibly not for you but it is THE primary criteria for me here. Unlike a tele lens the wide- or ultra-wides have to provide a uniform performance across the frame IMHO. In fact I don't even care for the center performance here - it is always "good enough" here anyway.