Pinhole 9x12cm quest

George Petrov (georgep@w4.iccs.acad.bg)
Thu, 09 Oct 1997 12:26:09 +0000 (GMT)

I'm planning to start 9x12cm sheet film photography.
Am I right to use formula for hole diameter D:
SQRT(Focal lenght)
D= -------------------- [mm]
44

Since I have enough quantity of b/w 9x12 sheet film, film holders,
cassetes, Jobo tank for development of 6 pieces at time, home made
enlargerer; can someone recomend me a combination of hole diameter
and focal lenght for this format. I am esspecialy interested is
there combination that can allow enlargment and by what ratio?
TIA
George
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E-Mail: George Petrov <jpetrov@fretris.iccs.acad.bg>
Date: 10/09/97 Time: 12:26:09
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