Quote:
Originally Posted by janoskiss
Pentax XF 8.5mm performs brilliantly with an 8" f/4 Newt, even without a coma corrector, and it hits the sweet spot for deep sky. IMO it's the ideal DSO EP for that scope. And it's the best bang-for-buck truly premium EP around. I cannot recommend it highly enough.
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Agree strongly ! I used the XF8.5 in my Vixen R200SS 8"f4.
(Sean, I have one you can try)