Two-Speed 10:1 Focus Knob Mechanism for Explore Scientific and Bresser 2.5-inch HEX Focusers
Two-Speed 10:1 Focus Knob Mechanism for Explore Scientific and Bresser 2.5-inch HEX Focusers is backordered and will ship as soon as it is back in stock.
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For high-power observing or imaging, this mechanism gives the 2.5-inch HEX focusers on Explore FirstLight and select Bresser Messier telescopes two speeds: a smooth coarse focus and a 10:1 ultra-fine focus.
Key Features
- 10:1 reduction. Dual-speed focusing, coarse and ultra-fine.
- All-metal construction with a stainless-steel ball bearing, for smooth action.
- Silver and black bead-blast finish.
Ideal For
- Owners of an Explore FirstLight or Bresser Messier telescope with a 2.5-inch HEX focuser, the focusers it is made for.
- Planetary and lunar observers at high power, where focus needs fine adjustment.
- Imagers setting focus for a camera.
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