Orion Maksutov 180 focuser upgrades
Posted 31 January 2013 - 06:13 PM
Posted 01 February 2013 - 05:29 AM
On my current one I use a Revelation Superfocus rack and pinion. It's strong, heavy duty, smooth and accurate. Love it! It also serves on my M603.
Posted 01 February 2013 - 12:58 PM
Posted 01 February 2013 - 03:46 PM
Rigel, I may see if my existing Motofocus will work on it. Would be lovely if so.
Posted 03 February 2013 - 06:44 AM
The standard focus on the 180s is plenty good enough to get real close to focus, and perhaps just use the fine-focus on a 2-speed focuser (Crayford or R&P) to get it "just so".
The initial focusing, using the standard focus knob on the telescope itself may or may not incur some "mirror slop". The final focusing using the external focuser, will definately not.