No. You have to double the previous number of flashes for each F/stop
change.
F22.........1 pop
F32.........2 pops
F45.........4 pops
F64.........8 pops
F90........16 pops
F128.......32 pops
F180.......64 pops
Never done it with pinhole, but done it plenty of times on large format.
Watch for reciprocity failure.
Mike Keller
http://www.mikekellerphoto.com
"With every mistake
We must surely be learning
Still my guitar gently weeps"
George Harrison 1943-2001
Received on Thu Dec 6 23:14:08 2001
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