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Ships within 48 hours · Estimated delivery Sep 6 - Sep 11
no fiddling
Step up to the Tri-Bahtinov
That reduced optical length is what lets back-focus-critical setups reach focus when a full-length adapter can’t
and splitting double stars
JMI EV1-N Dual-Speed Event Horizon Telescope Focuser - Newtonian MotoFocus+ no fiddlingCNC Machined in the USA Event Horizon EV1 Dual Speed Crayford Focuser, Newtonian Base Our flagship manual focuser. A dual speed Crayford drive with a 10: 1 fine focus knob for the most precise adjustments possible by hand replaces the stock focuser on your Newtonian for true zero backlash, zero image shift focus. A masterpiece of engineering and workmanship, the EV1 is a low profile, friction drive Crayford focuser for the discriminating astronomer.
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