Quote Originally Posted by jjphoto View Post
Even so, you need to stop it down to about F8 for optimum image quality with 6x7, so the F4 aperture is rather trivial IMHO. I have the 80/4 APO-Rodagon-N. It's a nice lens.
I know but for focusing you have a bit more light to go on than with a max aperture of 5,6. Thanks for the comment on the APO version..I feel tempted but I was actually looking to sell things this time, not to buy ;-)