Quote:
Originally Posted by ab1963
He is asking for advice on a 180 not a 150 which i think the people who have posted their advice has all been good for
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Not true - I’ve had 2 SW 180 maks over 10 years, Bigjoe had one (I bought his a while back) and I’m now using a 9” f/13 mak.
Agreed I’ve resisted TV eyepieces and there are certainly some excellent choices in midrange and even budget pricing. Regardless of cost there are some aspects that remain important in the eyepieces - sharpness over the field, contrast, lack of ghosts and flare with bright objects, field curvature, lateral colour off axis and so-on.
The selection of eyepiece focal lengths however is primarily determined by the focal ratio of the scope, first and foremost. F/15 is f/15, regardless of aperture.