Re: minimum zone plate focal length?

----- Original Message -----
From: Bill Erickson <erickson@hickorytech.net>
To: <pinhole-discussion@pinhole.com>
Sent: Friday, October 19, 2001 11:02 AM
Subject: Re: [pinhole-discussion] minimum zone plate focal length?

> As with all things pinhole, the rule is "try it!' My understanding is that
> zone plates of focal length less than 75mm are unreliably small to make.

Well, I could try it on my Crown Graphic, but I wanted to know the
limitations before I bought another Holga and took a chain saw to it to
adapt it. ;-)
Received on Fri Oct 19 15:46:52 2001