Re: ATM CCD Foucault tester?

["Bill Prewitt" <bprewitt@neo.rr.com>]

One of the eyepiece projection methods might work.
It needs to be fairly high power, because you want to fill the field with the
small mirror disk at ROC.

Ken Lowther and I have had good results with Zoom lenses.
With a C mount lense, you need at least 50mm focal length or the equivalent with
eyepiece projection.

I found one (attached to a clunky b/w security cam) at a ham radio flea market
for $20.
I think Ken found his on ebay.

               Bill Prewitt

My webpage of telescope making and caving
http://home.neo.rr.com/imaging


>
> Simple question for you all,  I want to utilize my .01lux CCD board for
> imaging my Foucault test.  Which of the following setups would work (or work
> best)
>