Everyone has differing reports on all sorts of stuff.
I have the GS 2" 30mm SuperView and after letting it cool for as long as the scope, I don't get seagulls around the edge! It is brilliant for large open star clusters and BIG nebs like Orion. The Carina section of the Milky Way looks magic through it. It is also a galaxy magnet!!
May I recommend (dollars permitting) getting a 2" Barlow. Then you can Barlow any EP, as the 2" has a 1.25" adaptor.
If dollars are short the Andrews 2" 2x Barlow is only $79. It isn't the finest peice of equipment made but mine works fine.
Andrews do have the $29 Cheshire, but they are not on his site.
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