Quote Originally Posted by Eric Rose
a f4.5 lens would be the craps for focusing. I've used both Schneider APO 50mm and Nikkor 2.8 - 50mm and can't tell the difference.
But if you used this lens you would be astonished...at how good it is. I used to own the Nikkor 50mm f/2,8 and the difference is staggering.