In a message dated 11/20/00 11:59:18 AM Central Standard Time,
peregoy@gl.umbc.edu writes:
<< Do you have a flash meter? If you do then you can determine the exposure
time for your pinhole lens by metering your setup then decide how many
stops different your pinhole is from your reading. For each stop off you
will need to double your exposure.
Say your meter says to use f 22 but your pinhole is an f 180, this is a
6 stop difference. to get the right exposure you would need to set your
flash off 64 times.>>
I too, would be interested in hearing about this , as I too, have a Santa
Barbara pinhole , and studio flash unit... 64 times of popping the flash? is
that a typo, ? I can believe 6 times, to compensate for the f/stop
differential and the reciprocity , but 64 ?....... Santa Barbara gives a
working f/stop of F/177 on their data sheets .
Received on Mon Nov 20 13:44:54 2000
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