Re: [APML]: Reducer lens for GEG

[apilato <apilato@spectra.net>]

The Astro-Photography Mailing List
------------------------------------

John P.,

> I first photographed through the Celestron OAG.  It worked ok and I >learned with it, 
>but it has its limitations.  For me, finding suitable >guide stars with it was horribly 
>frustrating because of the small prism >size.  Getting it to work with the ST-4 was even 
>more frustrating.  The >GEG provides a huge guide star prism compared to the Celestron 
>unit.  In >addition, its many operating modes, from f/10 to f/4 with a C-11 and >other 
>capabilities make it unique.  There is no other guider available >like it.
> 
> As for the f/6.3 focal reducer, I can tell you from experience the
> vignetting is terrible.  It's ok for visual observing, but for >photography, the 
>results are most disappointing.

John and everyone that have helped me out- I finally said "uncle" and am
going to buy a GEG. After spending so much money for a CG11 and time
already invested in AstroImaging already, a few more $'s will be worth
it in the end result.

Phillip Perkins- excellent overview of the GEG. It does look like the
RIGHT way to go.

One last question for users of the GEG - How/What do I now use to get
tack sharp focus with the GEG?

Thanks in advance.

Tony P.
Binghamton, NY
apilato@spectra.net
http://www.spectra.net/~apilato/astroa.htm