Hi everyone, back again with more focuser questions. I am still looking for a crayford style focuser for my Celestron Nexstar 9.25 GPS. I made some posts earlier about the feathertouch focuser, which is very nice. It's downsides were its higher expense and the need to use an adapter to attach to my SCT. It also seemed a little more than i needed with min. of 1.5" drawtube travel. I am only using the crayford as a fine focus to enable me to use my mirror focus as little as possible. I have found the JMI NGF-CM Next Generation Focuser 2" Schmidt-Cassegrain with Motofocus.
http://www.jimsmobile.com/images/ngf_cm_front.jpg
http://www.jimsmobile.com/images/ngf_cm_gears.jpg
http://www.buytelescopes.com/product.asp?t=&pid=1236&m=
It has some definite advantages that seem to work for me and I have found it for about $250, which is a little less expensive. Although I understand the feathertouch is a high quality product and is probably under priced if anything.(but for a college student every little bit helps!) 8) It also has motor control with a hand controller I have had a chance to use, and like very much. It also attaching directly to the back of my SCT without an adapter which is a plus. The question I have is has anyone used this focuser yet, particularly on the Nexstar series of scopes? Do these scopes hold decent weight loads (canon digital rebel, celestron radial guider, barrel extender) without slippage? I also have another question about my Celestron radial guider. It threads exactly to the back of my SCT currently. Since the new focuser will be before it in line with the scope, will I need an adapter than imitates the back of my SCT so i can attach my radial guider, or does it come with the adapter you think? To see my last thread you can go to the link below.
https://www.astromart.com/forums/viewpost.asp?forum_post_id=262103&poll_id=&news_id=&page=
http://www.jimsmobile.com/images/ngf_cm_front.jpg
http://www.jimsmobile.com/images/ngf_cm_gears.jpg
http://www.buytelescopes.com/product.asp?t=&pid=1236&m=
It has some definite advantages that seem to work for me and I have found it for about $250, which is a little less expensive. Although I understand the feathertouch is a high quality product and is probably under priced if anything.(but for a college student every little bit helps!) 8) It also has motor control with a hand controller I have had a chance to use, and like very much. It also attaching directly to the back of my SCT without an adapter which is a plus. The question I have is has anyone used this focuser yet, particularly on the Nexstar series of scopes? Do these scopes hold decent weight loads (canon digital rebel, celestron radial guider, barrel extender) without slippage? I also have another question about my Celestron radial guider. It threads exactly to the back of my SCT currently. Since the new focuser will be before it in line with the scope, will I need an adapter than imitates the back of my SCT so i can attach my radial guider, or does it come with the adapter you think? To see my last thread you can go to the link below.
https://www.astromart.com/forums/viewpost.asp?forum_post_id=262103&poll_id=&news_id=&page=
Attached Image:
David Albertson
