How does this work?
How does Side by Side Mounting Work???
Posted 11 March 2010 - 11:22 PM
How does this work?
Posted 12 March 2010 - 01:32 AM
It seems to me the computer would assume the scope is inside the dovetail shoe and pointed in the same direction as the dovetail shoe on the top of the mount. With a dual scope setup, the 2 scopes are pointed at right angles to the direction the computer expects. I do not think goto would work at all. I think a GEM could still track, but not find anything.
Maybe somebody has actually tried this and can chime in. I hope I am wrong because I might like to try a dual scope setup, but would like to be able to use computer assisted finding as well, and suspect that I would not be able to.
Posted 12 March 2010 - 01:58 AM
I can't remember on the Atlas, but on the CG-5 the mount doesn't "know" where you are pointing the scope- that is why there are alignment marks- you just make sure the scopes are polar aligned when you start and then start with your star alignments...
On the CGE, which does have a "home" position that the scope knows, there is a function you access through the setup function to tell the scope it is sideways mounted.
Hope this helps
Posted 12 March 2010 - 02:40 AM
Posted 12 March 2010 - 03:31 AM
It works very well.
Posted 12 March 2010 - 10:15 AM
The physical index marks on the mounts are there for convenience, they give you a consistent starting point so the mount can point relatively accurately to the initial alignment objects. You can move the index marks to where ever you like to start from to compensate for where the otas are actually pointed. The position of the marks have absolutely no effect on goto accuracy once the initial alignment is done.
A side by side setup also has absolutely no affect on the goto accuracy of these scopes. When you install a SbS configuration you have a few options. Rotate the otas 90° and then start the initial alignment, you can remove and reinstall the index marks so they reflect the 90° offset so you can continue to simply line them up and then start the initial alignment. What I'm not certain about is whether the mount will let you do an initial alignment when you have to move a large amount (like more than 90°) or whether you'll get an "alignment failed" message.
The other option for Celestron scopes is what Chris described, use the OTA Orientation routine in the HC.
If you have a CGE or CGEPro (which have switches for a hardware derived initial index or starting point) then you must use the OTA Orientation routine (or modify the mount to re orient the SbS mounted otas back to the original orientation).
Posted 14 March 2010 - 08:45 AM