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Subject: Re: LX-200 AND SBIG ST-7
From: J. W. Jennings
Reply To: mapug@shore.net
Date: Thu Jun 06 02:25:28 1996

Frank:

The information I have is that you cannot use any Color Filter Wheel
with the OPTEC f/3.3 focal reducer. The OPTEC is designed so that the
CCD chip must be at a precise distance (~ 0.9 inches as I recall). This
does not allow for a filter wheel. However, I am new to this and have a
lot to learn.

Regards, Jim

Frank_Angelini.WESTINGHOUSE-PGBU@NOTES.compuserve.com wrote:
>
> I realize that there has been significant discussion on this list
> regarding the compatibility of the SBIG CCD cameras and various MAP's,
> e.g. LX-200's, APO refractors, etc. I have yet to see convincing
> testimony however, and would appreciate comments, advice, etc. I
> currently own a 10 inch, F/10, LX-200. I like the self-guiding feature
> and product maturity of the ST-7 and ST-8. However, my budget can only
> support the ST-7 at this time. I want to image both deep sky and solar
> system, and have reasonable experience in conventional emulsion
> photography, e.g. prime focus, eyepiece projection, etc. I would intend
> to acquire the ST-7, SBIG Color Filter Wheel, and OPTEC F/3.3 Focal
> reducer for starters. Please comment!
>
> Cheers
>
> Frank J. Angelini, PE
> Senior Consultant
> Westinghouse Electric Corporation
> Electrical Power Systems Services
> Radnor, PA