The GM8 is the lighter mount is it not? I have thought of that one for my C9.25, but have always suspected that it would be 'borderline' and thus not ideal for picture taking. I can't remember the weight of the OTA, but as I recall it is right at the top end of the weight range that the GM8 should take. I certainly think it has less mirror shift. I notice essentially none on my scope. I really like mine. Given the right mount I think it would be great for astrophotos. dave -----Original Message----- From: UTAHDEB@aol.com To: utah-astronomy@mailman.xmission.com Date: Tue, 11 Mar 2003 14:05:49 EST Subject: [Utah-astronomy] C9.25 F/10 SCT Hi all, I'm thinking of going into digital astro-photography. I was wondering how the Celestron 9.25 F/10 carbon fiber tube assembly would work on my GM-8 mount. The exposures would be a maximum of five minutes. I hear that the 9.25" SCT has less mirror shift than the 8" SCT. I would attach a Nikon Coolpix 5000 using the TeleVue adapters. Anybody have any experience using the 9.25" SCT and what were your impressions of this scope? Thanks, Debbie _______________________________________________ Utah-Astronomy mailing list Utah-Astronomy@mailman.xmission.com http://mailman.xmission.com/cgi-bin/mailman/listinfo/utah-astronomy