Losmandy G-11 Equatorial Mount w/ Gemini 2 GoTo SyPosted By Thomas Picciani |
I've been using a G11 with Gemini 1 for roughly 8 years. Last year I upgraded to the Gemini 2. I also have seen countless CGEM's and CGE's.
I think the quality of the Losmandy gear is somewhat superior to the Celestron stuff. Not sure about recent manufacture but the older CGE's tended to have substantial play in the gears that is not evident in the G11's.
Out of the box, my G11 purchased in 2006 had a PE of around 14 arc seconds as measured by Pempro. Most errors were easily guided out but there was the occasional spurrious error that caused a random severe correction.
I upgraded in 2009 to the Ovision worm. The PE is now 2 arc seconds or leass peak to peak. I tested it last year in August and it still shows excellent performance.
The new Gemini 2 seems to be fairly easy to understand. The compatiblity with software seems to be OK now and the bugs are pretty much gone from what I've seen.
I run a C 9.25 on it with separate CFW, Optec focuser, and Pyxis Rotator on it. I have it on a side by side mount with a Short Tube 80 from Stellarvue.
G11 has no problem tracking or guiding.
I would recommend disassembling the mount and regreasing with Superlube if you can find it. I recently repacked the roller and thrust bearings and the performance seems even better than before.
Tom Picciani.
I think the quality of the Losmandy gear is somewhat superior to the Celestron stuff. Not sure about recent manufacture but the older CGE's tended to have substantial play in the gears that is not evident in the G11's.
Out of the box, my G11 purchased in 2006 had a PE of around 14 arc seconds as measured by Pempro. Most errors were easily guided out but there was the occasional spurrious error that caused a random severe correction.
I upgraded in 2009 to the Ovision worm. The PE is now 2 arc seconds or leass peak to peak. I tested it last year in August and it still shows excellent performance.
The new Gemini 2 seems to be fairly easy to understand. The compatiblity with software seems to be OK now and the bugs are pretty much gone from what I've seen.
I run a C 9.25 on it with separate CFW, Optec focuser, and Pyxis Rotator on it. I have it on a side by side mount with a Short Tube 80 from Stellarvue.
G11 has no problem tracking or guiding.
I would recommend disassembling the mount and regreasing with Superlube if you can find it. I recently repacked the roller and thrust bearings and the performance seems even better than before.
Tom Picciani.