Quote:
Originally Posted by WestAusChris
Hmmm have to go up to a 3x ??
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Try spacing the 2x barlow cell further from the eyepiece and you'll get a bit more maginification this way as well.
Quote:
Originally Posted by astro744
6" Dob is typically 1200mm f.l. (f8).
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Didn't realise his system wasf/8. I thought more like F/5 or about, so yeah 2.4m should be nice with 10mm.