Re: [APML]: varimagnifier/FOCUSING

["Bobby Middleton" <bobbym@webwide.net>]

----------
> From: Philip Perkins <philip@astrocruise.com>
> To: astro-photo@nightsky.com
> Subject: Re: [APML]: varimagnifier/FOCUSING
> Date: Sunday, January 25, 1998 6:04 PM
> 
> 
> > I'm using a small square of frosted scoth tape on the bottom of that
> > *completely* clear M screen. 
> Bobby,


Philip wrote:
 
>you may want to be a little 
> cautious about focusing on the tape, since you have actually modified the

> focus position by a few thou.you may want  to try an Intenscreen, which I
have
>found to be very bright and has the advantage that you can focus on it.


Yes, I must confess to wondering about those few thous; but I've done
better
with framing and focusing with this system than my other methods. 
Perhaps it's time to invest in an interscreen to give it a try. What
interscreen is the correct
one for a Nikon F or F2?

Bobby