- Original Message -
From: "Gordon J. Holtslander"
>
> some quick questions for the zone plate experts.
I am not an expert nor claim to be one, but your questions are right up my
alley!!
> tedious. 1/2 hour for somewhat under-exposed negatives in direct afternoon
> sun. I want to speed
Hi:
some quick questions for the zone plate experts. I did some work on the
weekend with a large pinhole camera and ortho film. The exposure time was
tedious. 1/2 hour for somewhat under-exposed negatives in direct afternoon
sun. I want to speed this up somehow.
How much faster does a zoneplat
