Can I recommend a Losmandy G8 over a CGEM? The losmandy seems to me to be of way better quality. About the same price as a CGX.
Well, if you're going to go there...
The current Losmandy G8G is $2495. Capacity is 30-40 pounds. The wheels (the big gears) on RA and DEC are 2.8 inches, 180 teeth. A picture.
The CEM60 (which I own) has a capacity of 60 pounds. The wheels are 5.7 inches, 288 teeth. It's $2200. Picture.
The Losmandy is much prettier, the cases are CNC machined and anodized, the CEM60 cases are painted castings. This has no bearing on function, and painted castings save a lot of money. The pictures make it dead obvious that the CEM is much sturdier, the wheel size is reflective of shaft size, etc.
Losmandy's are nice mounts. They are also expensive for what you get.
If the 27 pound weight of the CEM60 is a deterrent (the weight/capacity ratio is one of the very best), the $2000 CEM40 is lighter than the GM8G (16 pounds), and has the same capacity. Wheels are 4.3 inches, 216 teeth. The main cases are CNC machined and anodized. Almost certainly marketing, the CEM60 was criticized for its appearance. It makes the mount a bit more expensive.
iOptron has the light weight thing covered with the CEM mounts. They were one of the first (maybe the first) inexpensive mounts to come with spring loaded worms, which Losmandy recently adopted.
In contrast the CGEMII is 40 (!) pounds. To a certain extent it means stability. To a certain extent it means unsophisticated design has been addressed by making the thing _really_ heavy. The wheel size is 3.5 inches. If a heavy mount is OK, the 38 pound EQ6-R is the bargain choice at $1650. Quiet belt drive, the CGEMII has spur gears.
"The worms, ring gears, bearings and a variety of structural components in the CGEM/DX/II, Atlas, EQ6, EQ6-R are identical."
Lots of good choices out there.
Edited by bobzeq25, 15 February 2020 - 09:40 AM.