Focuser for a C9.25

Looking for some advice and info on a focuser for a C9.25 from those that have added this to their OTA.

Have found some info on a Williams SCT Crayford, Starlight and Burgess.

Will these work with both 2" and 1.25" optics? I currently only have 1.25" optics.

Will I need any add on accessories with any of the three afore mentioned vendors?

Any other manufacturers to check?

Is this a good option for a C9.25?

Thanks

I use a JMI NGFS and am very happy with it. Its an
electrically controlled 2" Crayford. See

http://www.jimsmobile.com/sct_accessories_diagram.htm#Diagram

I use a JMI NGFS, which is motor driven, and works well.

Any of the ones you mention should work well too, and will need an adapter for 1.25" if one is not already supplied.

The advantage of electrically driven ones like the JMI NGFS is that you do not have to touch the scope to focus, so avoiding a dancing image while you try to focus.

Do you need one of these focussers? What is the problem you are trying to solve? If you are using the scope for astrophotography or if you have excessive image/mirror shift in your SCT when focussing normally, they are very useful.

For visual use, a regular JMI 'MOTOFOCUS' which is a motor attached to your SCT focusser with a hand control may be all you need for focussing without the jiggles. (The motor just turns the focussing knob as you would with your hand). The JMI Motofocus is considerably less expensive than the NGFS, but will not cure image/mirror shift problems.

Just my $.02