Arjay
Time Traveller
Having come back to analog from digital photography, I' going through a number of picture processing woes that some of you might know:
At first glance, most of my scanned negatives seem to be slightly defocussed. It's really maddening. But let me explain in more detail:
I recall that the conventional COC value for 35mm film is around 0.033mm. Considering that scanning a film with 4000dpi and viewing it on-screen at 100% corresponds to a very substantial magnification, which COC value should I use for my shooting practice? Suggestions anyone?
PS I use a Konica Hexar RF w/ 35mm and 50mm Hexanon lenses.
At first glance, most of my scanned negatives seem to be slightly defocussed. It's really maddening. But let me explain in more detail:
- I use zone focusing and take my lenses DOF scale as reference (as well as DOF slide rules - google DOFMaster). I'm using Kodak BW400CN chromogenic BW film for now. Using such a fast film in daylight conditions ensures that I practically always have a shutter speed that precludes blur due to camera shake.
- I am scanning my negatives using a Nikon Coolscan V ED at 4000 dpi. That's a fairly high resolution, and this may be part of my problem.
- When I view my scans on my computer screen at 100%, it is very often quite a sobering experience: It appears that none of my shots are really sharp over the desired DOF distance range.
I recall that the conventional COC value for 35mm film is around 0.033mm. Considering that scanning a film with 4000dpi and viewing it on-screen at 100% corresponds to a very substantial magnification, which COC value should I use for my shooting practice? Suggestions anyone?
PS I use a Konica Hexar RF w/ 35mm and 50mm Hexanon lenses.