[toyos]

Coming back again to amateur Astronomy after 15 years on & off, and just purchased a GSO 12" Dobsonian and an imported 152mmx1200 refractor.

I owned several reflectors before but never had a large refractor. I always knew that refractors would provide clearer images with much better contrast, but I didn't expect that the 6" refractor would significantly outperform the 12" Dob (including many deep-sky objects) after comparing them side by side under the moderately light-polluted sky. Omega Centauri stands out crisply against a much darker sky background showing better detail.

I'm starting to wonder if there's probably something wrong with my 12" Dob, but everything seems fine and properly set up.

Any inputs?

Thanks