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 securely into place with three set screws so everything stays put. The heavy-duty focuser has 10:1 micro-focusing knobs as well as a rough focus knob. […]

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, Crayford-style focuser comes with a 2″ compression ring eyepiece adapter for added versatility. This adapter allows your 2″ eyepiece or barreled accessory to lock securely […]

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″ compression ring eyepiece adapter for added versatility. Three set screws firmly secure your eyepiece, adapter or other barreled accessory in place to make sure everything […]

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)