Originally posted by kuau
Hmm, bummer I purchased a demo 67 45mm late version and tried it on my 645d and the results were less then stellar at f11 infinty focus landscape image
Bad ca in the corners and very soft
Oh well must of had a bad copy
Steven
From Lloyd's test results with my 67 45mm lens -- which I believe is a good copy, since I had three to pick and they are all similar, none is too bad but nothing as sharp as the newest 67 55/f4, with CAs even readily visible on film -- on 645D it is not sharp out of the center 1/2 circle.
I believe this agrees with the others reported on this Forum (but I have no time to search and quote). I can post film scan crops to demonstrate the CA issue. As we all know, the newest 67 55mm doesn't have any CA problems like this.
The conclusion was, currently the only lens sharp to the edges (at f/8-f/16) is the 45-85mm zoom at 45mm.