Two-Speed 10:1 Focus Knob Mechanism for Explore Scientific and BRESSER 2.5-inch HEX Focusers f/6.5 Oversized altitude (16

Oversized altitude (16

Weighing just over two pounds

and other bright celestial targets

minimizing harm during collection

Two-Speed 10:1 Focus Knob Mechanism for Explore Scientific and BRESSER 2.5-inch HEX Focusers f/6.5 Oversized altitude (16Sometimes 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. Precision all metal construction with stainless steel ball bearing for super smooth action. Attractive silver and black bead blast finish.