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I'm using a 200mm dob, f.l. 1200mm, so it's an f6....
I'm interested in planets and deep sky, just beginning to find my way around really. I like the idea of having a range of magnifications, especially down from 20mm...
If slowing the system to f12 helps with planetary observation that's great....does this mean I could get away with using, for want of a better term, "less-better-corrected" eyepieces to get good results at high magnification? I'm asking this because I've read that faster scopes require, in the shorter focal lengths, more expensive eyepieces that compensate for the faults inherent in fast systems...
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