Interesting shot of the mounting plate Bert.
I saw this thread about the scope as well with Gino testing it:
http://it-it.facebook.com/pages/Offi...type=1&theater
With an Atlas focuser Proline should be fine. I'd go for it. It'd be an awesome imaging machine.
One shot colour Bert? Have you seen the new Kodak True Sense colour sensors that are said by them to have twice the low light sensitivity of the usual Bayer matrixed chips?
They are all KAI series sensors at Kodak Sensor Solutions under products.
8050, 10050 on up to 50100. FLI can put any chip you like in their cameras, so can Apogee. SBIG don't seem to be offering these yet but perhaps if asked would put one in an STX body.
All small pixels so a good match for the scope.
Mono will be more work, more money as you need the filter wheel and filters but ultimately the better images.
Paul I'd be surprised if there was any noticeable flex in a 3.5 inch FT focuser and an STL. That is light as bro. 3.5 inch FT is what is on my TEC180 and it is quite beefy. Yuri did do some tests and it did flex more upright than it does upside down but very small amounts of flex under heavy load. You'll be right there.
Greg.