Quote:
Originally Posted by allan gould
Kevin
I think you didn't see that I was comparing a 10" and 12" at different f ratios. But thanks any way.
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I did, but if you're shooting extended objects, the exposure is determined by f ratio not aperture. For instance a 3" f6 or a 20" f6 have the same exposure time since they're both f6.
But I've got a funny feeling I'm missing something.
Someone explain it to me.