Astro-Physics 4" Focuser W/9:1 FT Mod W/O Adapters
Silky smooth dual speed precision- that's what the Astro-Physics 4" Focuser W/9:1 FT Mod W/O Adapters offers. Combining the smooth motions of the robust 4" Giant Focuser with the dual speed mechanism of the Feathertouch Mechanism, this superb focuser is a truly high quality piece of equipment. The dual-speed feature is particularly advantageous for critical focusing of scopes with fast focal ratios, and this model also features Astro-Physic's new greaseless drawtube- greatly lessening the dirt that might accumulate within said drawtube. This in specific, is the new assembly without the adapters (2.7", 2" and 1.25") or focuser extension. Meant as an upgrade for those already in possession of an older model of the 4" focuser, to add the Feather-Touch Micro and Greaseless Drawtube. It can be used with the adapters from prior models easily- and is simple to install as well. Just remove the six screws that hold the original one in place. Slip the focuser out and insert the new one. Replace the screws and you are ready to go using the adapters that you already have. And that's that! It's easy as it could possibly be.
Astro-Physics 4" Focuser W/9:1 FT Mod W/O Adapters; Features
- Greaseless Drawtube
- All components are machined of high quality aluminum. Housing is black-anodized.
- Brass locking rings to secure focuser drawtube.
- 4" Inner Diameter of Tube
Manufacturer Product Number: S4FOC3E-FT