SCT Crayford Focuser

Intane Optics - 2" Crayford SCT Two-Speed Focuser is designed to last a lifetime
and work with virtually any standard SCT/MC telescope. Now you can enjoy zero image-shift
during your most critical observations and imaging. Unbeatable in both
quality and price.

Features:

2" Focuser for Schmidt-Cassegrain / Maksutov-Cassegrain telescopes

Crayford design: zero image-shift and focusing made easy!

Very smooth, no lateral movement or tilting.

The focuser tube is fully threaded and the threads are painted flat black to prevent
unwanted reflections.

Drawtube tension adjustable to match varying accessories .

Included in the price is a 1:10 dual speed microfocuser.

particularly appreciated during astrophotography.

Black Anodized.

Completely, precisely machined out of solid aluminum.

2" to 1.25" adapter with brass compression ring included.

Internal anti-reflection threading on drawtube and 1.25" adapter to improve image
contrast.

Specifications

Focuser tube travel 80mm
Focuser tube length 150mm
Minimum distance from OTA to end of focuser tube (1-1/4" adapter), 102mm
Maximum distance from OTA to end of focuser tube (1-1/4" adapter), 182mm
Focus knob diameter 40mm
80mm Refractor base diameter (will fit standard short tube 80 scopes) 85mm

* Dimensions are plus-or-minus 1/16", 1mm.