I can make a few suggestions to some of the issues raised here. I don't own one and have nothing to do with Andrews other than being a past satisfied customer.
John Oz,
Your one side out of focus issue could simply be due to camera sag because the focuser isn't strong enough to hold the eyepiece straight with the weight of the camera. The the focal plane isn't orthogonal to the optical axis - nothing to do with the eyepiece itself or the Mak optics.
Jason,
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This sounds like an ad.......
I've owned the 2" 42mm and found it to be so visually poor that it's not worth using on anything at f/6 or faster.
They may be ok on slower ratio scopes of course.
Cheers,
Jason.
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I agree it sounded like an ad. i don't understand why would you want to use a camera projection eyepiece for visual obs? Wide field eyepieces for faster newts are generally expensive. This is probably a simple Plossl design or similar.
Chif wrote
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Sorry to jump in here guys but this has grabbed my attention. As far as connecting a camera to this eyepiece, how is it different to using a Barlow? At the moment I'm just connecting my camera straight to the scope but want to get higher magnification. Would this be the way to go?
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A projection eyepiece allows afocal projection or eyepiece projection. Afocal projection is where a camera like a compact camera with lens attached is put up to the eyepiece.
Joe Cali