On 9/15/2010 7:54 AM, Larry Colen wrote:
It sound like what I'll need to do is get a 645D, a close up lens, a
suitable negative mount and light source, then do HDR multiple
exposure to extract the full range of tonality from the negatives,
then write a filter that'll relinearize the non-linear response of
film, to get the full dynamic range.
Well, in principle, as far as I remember there were (are?) scanner
programs (3rd party ones of course) that do what you prescribe. They
scan the image several times with different exposure settings and put
the results together. I also remember that even my rather simple Epson
Perfection 2450 (or was it 2400) - the flatbed scanner that could take
negatives, had an ability to produce 16 bit TIFFs and some kind of RAW
files as well. I mean in its native software.
I am sure we have significantly more knowledgeable people on this list
who did this kind of scanning. I hope they can give you more concrete
and more useful hints, but nothing prevents you from buying a Pentax
645D to shoot sparrows (pun intended) (*)...
Boris
(*) "Strelyat' iz pushki po vorob'yam" (rus) - "Shoot sparrows with
/cannons/"...
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