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Short FL Scopes.
I want to get myself a shorter FL scope, something around 800mm.
I've been looking at either a 2nd hand Tak FS-102 or a new Vixen R200SS. Both are 800mm but the Vixen is half the F stops of the Tak at F4 and way way cheaper. In fact I can get the Vixen and a QHY8 camera for less than the 2nd hand Tak. The Tak has a reducer where as the Vixen has a coma corrector and a tele-extender. I doubt I'd want less than 800mm but I believe the tak needs the FR to get a flat field.
Which way would you go and why?
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