12-09-2010, 07:54 AM
[quote name='RussellB' timestamp='1291875585' post='4893']
Why did the Apo Lanthar 90mm f3.5 lens become so unexceptional in sharpness when mounted on the Nex? 3 stars optical rating. It tested so well, 4.5 stars optically, in the Nikon APS-C photozone review. Is this going to happen with every lens we put on the Nex? Your theory, Klaus? In contrast, the Sony 50mm f1.8 did not take quite so much of a hit upon migration to the Nex.
[/quote]
Since they're both SLR lenses, I expect the resolution conversion numbers when put on the Nex to be fairly close with a bit of room for experimental error.
I found a similar weirdness in the 17L test:
http://forum.photozone.de/index.php?/top...lts-error/
GTW
Why did the Apo Lanthar 90mm f3.5 lens become so unexceptional in sharpness when mounted on the Nex? 3 stars optical rating. It tested so well, 4.5 stars optically, in the Nikon APS-C photozone review. Is this going to happen with every lens we put on the Nex? Your theory, Klaus? In contrast, the Sony 50mm f1.8 did not take quite so much of a hit upon migration to the Nex.
[/quote]
Since they're both SLR lenses, I expect the resolution conversion numbers when put on the Nex to be fairly close with a bit of room for experimental error.
I found a similar weirdness in the 17L test:
http://forum.photozone.de/index.php?/top...lts-error/
GTW