- Original Message -
From: Thom Mitchell tjmi...@ix.netcom.com
Would then a thick material create a smaller circle with the same image
quality (or not) as a thinner material? These may be simple questions but I
want to be able to control the size of my image circle, either through
circle relative to focal
length/fstop
But if your aim, Thom, is to have a circular image in the middle of your
paper/film format, the bellow mentioned rule will not work for you, in
such a
case you should perhaps assume a 5 times the focal length or even more.
Use
also thick material to make
-
From: Thom Mitchell tjmi...@ix.netcom.com
To: pinhole-discussion@p at ???
Sent: Monday, March 25, 2002 5:44 PM
Subject: [pinhole-discussion] image circle relative to focal
length/fstop
How can I quickly determine the size of the image circle for a given
focal length and f/stop. I want to be able
