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Old 12-10-2009, 10:32 PM
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mental4astro (Alexander)
kids+wife+scopes=happyman

mental4astro is offline
 
Join Date: Jun 2008
Location: sydney, australia
Posts: 5,006
Adman, if it's mainly visual you are after, a coma corrector is not something that is really necessary. Some ep's deal better with this than others, especially at f/5. My big dob is f/4.5 & I had the chance to compare the image between my GSO Superview 30mm & a TMB Paragon 40mm. The GSO is useable, but with small but obvious 'seagulls' in the outer third of the field of view. The TMB should have shown much more obvious 'seagulls' for its focal length, but they were tiny, tiny, tiny. A trully brilliant ep. I want one. No coma corrector used here.

Yes, a collimator is necessary, but the GSO laser collimator is $60. Looking at one myself too. Much easier to use with my monolith than the cheshire eyepiece.

The OTA's appear to come with mounting hardware from Andrews, plus finder. Call 'em to find out.

All up this is about half your 1k budget, assuming you have ep's.
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