Hi all,
Thanks to Rosanne for her info about New Year 2002 swap Forum !
... And now do not forget that there is a S2PP Spring 2002 Pinhole print
swap which may interest you :
Hi you, happy Pinholer from somewhere in the world !
Following the success of the previous pinhole printswaps
- Original Message -
From: Richard M. Koolish kool...@bbn.com
I'm not sure I would describe the workings of a zone plate this way.
It
doesn't matter where in the zone plate (or pinhole) the light passes
through. It doesn't bend at one place and not in another. The way
you
Kate, I don't think I mentioned distortion in my post. A faster ZP has
more clear rings, but that causes no distortion, the ZP camera still is free
of linear distortion (at least). The increased number of clear rings
increase the
ratio noise/signal, tho. Noise is the light that reaches
No problem, James.
This happens every so often on the list and it's always a good occasion to
remind
everyone about not posting attachments.
Cheers,
Guy
jamesromeo wrote:
on 11/14/01 8:05 PM, Guy Glorieux at guy.glori...@sympatico.ca wrote:
I sent the photo to show a print done with the
- Original Message -
From: Kate Hudec hu...@rcn.com
I was interested in Guillermo's recent post about the relationship
between number of rings and zone plate image sharpness. I have a
converted Lubitel with 75mm focal length. If I wanted a camera with
MORE distortion (which I
