Thanks, I am close to setting up a similar setup with 6.2 pound 72mm refractor on top of an 18 pound 8” classic cass with other visual stuff bringing the total weight to just under 30 pounds. I am hoping that a G811g can handle it. But, when I see your setup on a G11, I am starting to wonder???
I'm not familiar with the capacity of the G811g. But your intended use will figure into it. I have used my C-8 and C-11 on the G11 mount for long exposure astrophotography. For that it worked OK as long as there wasn't much wind. For visual use the C-11/AT115EDT combo works great for visual use, even though the total load is pushing the mount's capacity.
While there are other high quality mounts available, I have found everything about Losmandy products is of highest quality. With that in mind their mounts are more likely to perform well when pushed toward the weight capacity limit. So for visual use, that is something to consider. For photographic uses your mount's utility will depend on which OTA will be used and what is the length of exposure. For EAA (electronically assisted astronomy) with shorter exposures, even a challenged mount could perform quite well. The image scale will also figure in. The cassegrain will be much more demanding in that regard versus your nice refractor.
While I have gone away from long exposure astrophotography, the C-8 is capable of some fine results at f/7 on the G11. For my uses, EAA is the best of visual and photographic observations. Here's an example of long exposure astrophotography:
Helix Nebula, NGC 7293, C-8 f/7.0, 1420 mm, 4-1/3 hours exposure, Sony NEX-7, ISO 800 - Processed with PixInsight: 8 X 15-minute & 7 X 20-minute lights, 7 darks, 10 flats, 20 bias, Post processing in PixInsight by Chris Rock
Here are some examples of EAA. These I was able to see build up on the computer screen as the image was live stacked.
Orion Nebula, M42, Pentax 200mm f/4 @ f/5.6, 36mm aperture, ZWO ASI290MC video camera, 200 frames live-stacked with SharpCap, dark frame applied, hot pixels not removed
Crab Nebula, M1, Stack of 24 frames, 10-seconds each using SharpCap, C-11 F/6.3
Planetary Nebula NGC 2438 in O.C. M46, C-11, f/6.3, ZWO ASI290MC camera, live stack of 49 6-second frames with SharpCap
Let us know what you come up with.
Edited by Rustler46, 09 January 2021 - 09:19 PM.