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 Specs Warranty Finding and holding that perfect crisp focus is almost effortless with Explore Scientific’s Crayford Style Focuser. Defined by its precision, this dual-speed 2.5-inch focuser comes with a 1.25″ compression ring eyepiece adapter for added versatility. Three set screws firmly secure your eyepiece, adapter or other barreled accessory in place to make sure […]

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 FirstLight and select BRESSER Messier telescopes, provides a smooth course focus and a precision ultra-fine focus. Features Precision all-metal construction with stainless-steel ball bearing for […]

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)

Description Provide Finer Focus Adjustments With the installation of the Vixen Dual Speed Focuser, the rack-and-pinion focusing equipment on your Vixen Telescope can be upgraded to provide finer focus adjustments. Allows dual-speed focusing with coarse and fine speed adjustments. The Dual Speed Focuser can be retrofitted to the rack and pinion focuser, by removing one […]