Re: Grinding a flat
SCN User (notpete@scn.org)
Mon, 1 May 1995 17:30:58 -0700
>
>Sigh, a friend and I occasionally discuss making a flat, but we are
>intimidated by obtaining a reference. Is there a way to test a flat that
>is as easy to use as a ronchi test? If we could, we would like to make a
>6-inch flat for a celeostat (spelling?). Well it is just a thought - any
>ideas?
>
>Bob
>
>):-{])) <---- madden@netcom.com
> madden@svpal.org
> Remember amateur astronomers:
>"keep looking for the next Universe"
>
>
>
There was a Gleanings article by Ed Jones a few years ago about testing
flats using water as the reference. I tried it and got it to work, but
you would need to have lots of patience to figure a flat using it. The
set up and adjustment can take a whole bunch of time.
Peter
--
Peter Hirtle notpete@scn.org Seattle, WA.