Focusers/Rotators

Description Finding and holding that perfect crisp focus is almost effortless with Explore Scientific’s Rack & Pinion Focuser. Defined by its precision, this dual-speed 2" focuser comes with a 1.25"...

RB Focus Merlin HD 3.0 Electronic Focus Motor AC Adapter Ac Adapter for the Merlin Focuser

RB Focus Merlin HD 3.0 Electronic Focus Motor FYI: With this focuser you must supply 12v power AND USB-C Connection.  This allows this focuser to handle heavier payloads. See Here...

Rainbow Astro RSF-8 Motor Focuser: Advanced Focusing for 8-inch RC Telescopes   Designed for Reflecting Telescopes: Specifically created as a secondary mirror moving motor focuser for RC 8", 10", and...

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

Description Explore Scientific™ David H. Levy Comet Hunter Telescope is rich in quality components. Among those is the 2? Comet Hunter Focuser, which also can be purchased separately. This dual-speed,...

Explore Scientific Rack and Pinion Focuser Extension Tube adds half an inch to our 2-inch Rack and Pinion focusers on our ED APO telescopes. CA Residents: Prop 65 WARNING(S)

Explore Scientific Rack and Pinion Focuser Extension Tube adds 1.5 inches to the 2-inch Rack and Pinion focusers on our ED APO telescopes. CA Residents: Prop 65 WARNING(S)

Description Sometimes you need that precision focus adjustment, especially for high-power observing or for making images. The Two-Speed 10:1 Focus Knob Mechanism for the 2.5-inch HEX Focusers found on Explore...

Explore Scientific 1.5-Inch Extension Tube adds 1.5 inches to the 2.5-Inch Hex Focuser - ESHEXEXT2 37 mm tall CA Residents: Prop 65 WARNING(S)