We are pleased to offer very high quality Crayford focusers from Guan Sheng Optics (GSO) and adapters for these focusers from Antares. Each Crayford focuser is beautifully machined. These are available for reflectors and refractors and are available in single speed design as well as in a dual speed 10:1 microfocuser design.

All focusers come with a 1.25"-2" adapter with brass compression rings in the 1.25" adapter as well as in the 2" focuser barrel. These focusers will fit many models of telescopes on today's market with absolutely no modifications.

- Standard adapter bushing included with the focuser (86.1mm diameter) will fit most imported 80mm and 90mm refractor telescopes with a tube inner diameter of 86mm - 88mm.
- The focuser is easily attached to the telescope with three M4 screws (not included) spaced 120 degrees apart on the flange.
- Direct bolt-on replacement for stock R&P focusers on the Stellarvue AT-1010 and Nighthawk telescopes.
- Models with integrated 96mm and 112mm telescope adapters are also available.
- Used with Antares adapter rings (sold separately), can be attached to Synta refractors (including Celestron, Konus, Orions and Skywatcher).
- Adapter rings are available separately for 102mm (4.01"), 120mm (4.72") and 150mm (5.91") refractor telescopes. The outer diameters of these rings (equal to the inner diameter of the telescope tubes on these telescopes) are 3.8", 4.4" and 5.4" respectively. The 102mm adapter is required for the ED80 refractor.

- You can also mount a red dot, multi-reticle or conventional larger finder using our modified finder dovetail base.