Tecnosky Precision 2" S Focuser – Rack & Pinion, 8 Bearings

Tecnosky Precision 2" S Focuser – Rack & Pinion, 8 Bearings

Description:
The Tecnosky Precision 2" S focuser is a robust rack and pinion unit designed to support heavy imaging setups with no flex or play, ideal for modern deep-sky astrophotography.

The drawtube is supported by 8 ball bearings, providing exceptional mechanical stability even when fully extended. Unlike traditional 4-bearing models, this advanced design eliminates any tilt or backlash.

The focuser uses a fine transverse-tooth bronze rack and a precisely mounted gear. Two large knobs allow smooth motion, while a third 1:10 reduction knob ensures micrometric precision focusing.

The eyepiece end features an M63x1 thread with a brass compression ring. The telescope side is machined to 77.9 mm diameter, directly fitting GSO Newtonian bases. Optional adapters make it compatible with RC GSO, Sky-Watcher refractors, SCT tubes, and more.

Technical specifications:

• Format: 2"

• Bronze transverse-tooth rack

• 8 ball bearings (drawtube)

• Low profile: 44 mm

• Travel: 35 mm

• 1:10 fine focus reduction

• M63x1 eyepiece thread

• 77.9 mm telescope-side cone

• Weight: 740 g

• Load capacity: 4 kg

• Precision-machined aluminum

• Motor compatible: EAF, Pegasus, Tecnosky

• Tube-specific adapters available

Additional information:

• Designed for heavy astrophotography setups

• No play or flex even when extended

• Fits many telescope types with Tecnosky adapters

• Solid, precise construction