Quote:
Originally Posted by Atmos
I agree with Ray, a good 8" F/4 Newt with coma corrector would be a great place to look.
As rally suggests, a second hand FSQ 106 is also a good option but you're not likely to find one around the $3,000 in good condition.
Out of those two I'd gravitate towards the Newt given your requirements.
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Colin, thanks, i would probably prefer an f5, simply for ease of collimation and longer focal length of 1000mm. The concerns i have with newts (in their pure form) are: diffraction spikes, the mandatory secondary heater, focuser/camera positioning, but i lived with those issues with my 10" f5 newt. The good thing about newt choice is that i can get carbon tubes for most of the popular imaging versions, which might allow greater aperture for the weight limit. I already have a Baader MPCC and spacers for my camera.