Quote:
Originally Posted by lct
Or wides with short distance subjects if i follow you.
But what about focus shift in your calculations if i may ask? Should we take for granted that a lens like the CV 35/1.4 has such a focus shift that it might be considered as front focussing by 2 meters or back focussing by 5 meters in my example above?
|
Exactly! 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?
Take 35mm, COC 23, f4 at 1 metre then you get:
So-max 1.08 m
So-min 0.933 m
Overall depth of field
DOF 0.14 m