Focusers

Explore Scientific Rack and Pinion Focuser Extension Tube 1" Extension for our 2" Rack and Pinion focusers on our ED APO telescopes.

Explore Scientific Rack and Pinion Focuser Extension Tube 2" Extension for our 2" Rack and Pinion focusers on our ED APO telescopes.

Explore Scientific Rack and Pinion Focuser 2.5" Extension Tube - ESHEXEXT2   37mm Tall

Description Sometimes you need that precision focus adjustment, especially for high-power observing or for making images. The Two-Speed 10:1 Focus...

Description Explore Scientific’s dual speed, 2" AR Series Focuser comes with a 1.25" compression ring eyepiece adapter for added versatility. This...

Description Explore Scientific™ David H. Levy Comet Hunter Telescope is rich in quality components. Among those is the 2? Comet Hunter Focuser, wh...

Description Finding and holding that perfect crisp focus is almost effortless with Explore Scientific™s Crayford Style Focuser. Defined by its pre...

Description Finding and holding that perfect crisp focus is almost effortless with Explore Scientific’s Rack & Pinion Focuser. Defined by its ...

Description Specs Warranty Finding and holding that perfect crisp focus is almost effortless with Explore Scientific™s Crayford Style Focuser. ...