Quote:
Originally Posted by multiweb
My understanding is that the RCOS have no glass in the imaging train so they are suited for UV/IR imaging also and come with various enhanced mirror coating including gold. So they're pretty much the only top notch 'pure' reflecting system available on the market I'd say.  On any newt you'll need a corrector. Balance can be sorted out by placing the focuser facing up or down do you don't have any camera overhang. |
What's the cheapest type of corrector for a short F ratio newtonian?
Rob.