JMI Focusers and Accessories

The Event Horizon Focuser 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 fantastic 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 and Smart Focus or Digital Readout (DRO) for the ultimate focusing system. The EV is truly a masterpiece of engineering and workmanship that you will be proud to own for years to come.

  • JMI EV 5.75-inch Drawtube
  • JMI EV 5.75-inch Drawtube

  • EV-DT57 JMI Event Horizon 5.75" Drawtube read more...
  • Our price: $44.00

  • JMI EV-MTR Motor Upgrade
  • JMI EV-MTR Motor Upgrade

  • EV-MTR JMI Motor up grade for Event Horizon Focuser read more...
  • Our price: $169.00

  • JMI EV2C Cassegrain Focuser
  • JMI EV2C Cassegrain Focuser

  • JMI EV2C 2" Cassegrain Focuser read more...
  • Our price: $269.00

  • JMI EV2CM Cassegrain Focuser with Motor
  • JMI EV2CM Cassegrain Focuser with Motor

  • JMI EV2CM 2" Cassegrain Focuser with Motor read more...
  • Our price: $429.00

  • JMI EV2N Newtonian Focuser
  • JMI EV2N Newtonian Focuser

  • JMI EV-2N 2" Newtonian Focuser read more...
  • Our price: $279.00

  • JMI EV2NM Newtonian Focuser with Motor
  • JMI EV2NM Newtonian Focuser with Motor

  • JMI EV2NM 2" Newtonian Focuser with Motor read more...
  • Our price: $439.00

  • JMI EV3C Cassegrain Focuser
  • JMI EV3C Cassegrain Focuser

  • JMI EV3C 2" Cassegrain Focuser read more...
  • Our price: $209.00

  • JMI EV3CM Cassegrain Focuser with Motor
  • JMI EV3CM Cassegrain Focuser with Motor

  • JMI EV3CM 2" Cassegrain Focuser With Motor read more...
  • Our price: $369.00

  • JMI EV3N Newtonian Focuser
  • JMI EV3N Newtonian Focuser

  • JMI EV3N Newtonian Focuser read more...
  • Our price: $219.00

  • JMI EV3NM Newtonian Focuser with Motor
  • JMI EV3NM Newtonian Focuser with Motor

  • JMI EV3NM 2" Newtonian Focuser With Motor read more...
  • Our price: $379.00

  • JMI EVUPG75 Upgrade
  • JMI EVUPG75 Upgrade

  • EVUPG75 Upgrade read more...
  • Our price: $89.00

  • JMI Extension Tube 2 x 1.5
  • JMI Extension Tube 2 x 1.5

  • JMI ADPT2EXT Extension Tube 2 x 1.5 read more...
  • Our price: $59.00

  • JMI Focuser Backup Plate Curved
  • JMI Focuser Backup Plate Curved

  • ADPTBUPC JMI Focuser Backup Plate (Curved) (2 needed) read more...
  • Our price: $25.00

  • JMI MFCREF MotoFocus for C6-RGT
  • JMI MFCREF MotoFocus for C6-RGT

  • MFCREF C6-RGT MotoFocus read more...
  • Our price: $169.00

  • JMI MFGS02 Motofoucs for Lightbridge 8-10-12
  • JMI MFGS02 Motofoucs for Lightbridge 8-10-12

  • JMI MFGS02 Motofocus for Lightbridge 8-10-12 read more...
  • Our price: $169.00

  • JMI MFV200 Motofocus for Vixen VC200L
  • JMI MFV200 Motofocus for Vixen VC200L

  • Motofocus for Vixen VC200L read more...
  • Our price: $179.00

  • JMI PC Focus Control
  • JMI PC Focus Control

  • PCFC JMI PC Focus Control read more...
  • Our price: $179.00


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