EV-3r Event Horizon 2" Crayford Focuser - Refractor Telescopes
The JMI Event Horizon EV-3r is a 2" black-anodized aluminum focuser with knurled knobs. The focuser lifts up to 4 pounds. Manual control is over 1½ times finer than most rack-and-pinion focusers.
The Event Horizon Focuser (EV) is a low-profile, friction-drive focuser designed for both the amateur and professional market. The highly acclaimed Crayford design permits tolerances up to 100 times better than conventional rack-and-pinion focusers. Zero image shift and zero backlash makes it superb for visual and photographic work and a must for CCD imaging. The modular design makes changes and upgrades extremely easy to accomplish. ADD the optional Variable Speed Motor, Smart Focus,or Digital Read Out (DRO) for the ultimate focusing system. The EV is truly a masterpiece of engineering and workmanship.
This Refractor version (EV-3r) mounts on many refractors having one of two different inside diameters of approximately 3.5" and 3.75". The following is a partial list of refractors that should accept the focuser:
Celestron C4-R, C6-R, C6-RGT, Firstscope 102; Orion AstroView 100 EQ / 120ST EQ, SkyView Pro 120; Synta / Sky-Watcher (Pro Computerized) 100ED-EQ5P, 120ED-EQ5P, 120AR-EQ5P, 150AR-EQ5P, (Pro Manual) 102AR-EQ5M, (Pro Refractor OTAs) P80 ED-APO, P100 ED-APO, P120 ED-APO; Vixen ED100Sf
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|Name||JMI - EV-3 Telescope Focuser for Refractor Telescopes|
|Manufacturer||Jims Mobile, Inc. (JMI)|