Best reflector for AVX or ZEQ25?
Posted 19 July 2013 - 11:13 PM
The AVX has a 30 lb. payload, 10" reflector OTA is 28 lbs. Or is that too heavy?
Posted 20 July 2013 - 05:54 AM
Posted 20 July 2013 - 07:12 PM
Posted 21 July 2013 - 09:54 AM
In another thread, I asked about the 8 inch on the Sirius mount for astrophotography. The consensus in reply was that the scope plus tube rings, dovetail, autoguider and camera would be too much weight on the mount. It would be ok for visual. (I ended up buying an iOptron iEQ45 and a William Optics GTF102.)
I am thinking about buying Orion's 10 inch Newtonian to put on the iEQ45. It would be for visual only because I suspect it would be too heavy for photography. For that I expect to need a Losmandy G11 or Astrophysics Mach1.
Orion sells GoTo Dobs up to 16 inches. If you don't want to do photography, one of them would be a better setup.
Posted 21 July 2013 - 06:17 PM
The reason I suspected these two mounts could handle a 10" Newt (27 lb. OTA) is because Celestron sells the 11" SCT on an AVX mount (also 27 lb. OTA).
I had not considered a Dob because I might want to do AP with this mount in the future. Are there ergonomic advantages to a Dob over a GEM Newt?
How do you like your IEQ45? I would think that if the ZEQ25 can handle the 10" Newt for visual, the 45 should be able to take it for AP.
Posted 21 July 2013 - 10:37 PM
The ergonomics of a Dob are the eyepiece position (eyepiece position will change depending on where you point an eq mount) and the chair, for those who prefer observing from a seated position. An extra tube ring will help a lot with the tube rotation issue for an eq mounted reflector, but there is no way you are going to be seated in a chair. Personally I like eq reflectors, but then I prefer to stand while I observe too. Call me a freak.
Posted 21 July 2013 - 11:04 PM
For awkward eye piece placement, isn't that solved by rotating the OTA?
Besides cost, any downsides to getting a 11" on the AVX vs. a 10"
Newt on a iEQ45 or CGEM?