Quote:
Originally Posted by furgle
I'm guenuinely curious about what may be a better scope in the 600 and 1000mm focal lengths. My imaging train is quite long so it's hard to find something with enough back-focus. Newts don't seem to be much good since the train is also quite heavy and changes the collimation of the tube. (On axis guider + QSI683ws-8, and an SX-AO if there's room to spare.
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Simple physics really...
Going to a modest say 13cm, you gather over 3x more light...so what took you 13 hours on the E80 you will get in under 4, with better resolution to boot.
Not saying you have to...simply something to ponder.
