one question for people who have the CV 40mm 1.4. Do you see vignetting at 1.4?? Not sure if it is my hawk's adapter but at 1.4 i see vignetting....i had forgotten when the vignette disappears stopped down but it does go away when you decrease aperture.
EDIT: LOL, i should have googled first.....yes, it does vignette wide open.
Hmm well i have not seen one lens on a full frame camera which does not vignette? (at least to some degree)