Quote:
Originally Posted by SJP
...This amount of focus shift would seem unlikely to the extreme so I do not understand if there would be focus shift problems at f4 & 6 metres. Maybe at close range?...
|
I chose 6 meters because the lens suffers from focus shift at 20 feet according to Sean's post above, but i might ask the same question for a 10 feet (3 meters) subject distance as well.
Should we take for granted that the CV 35/1.4 has such a focus shift that it might be considered front focussing by 50 centimeters or back focussing by 90 centimeters at f/4 & 3 meters?
Edit: Asking this because i have never seen that in 30 years so far except with one lens (M-Rokkor 40/2) which had apparently focussing problems with an Epson body.