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 (see below) 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.


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Product Image Price- Item Name

JMI Reverse Crayford 1" Focuser $121.00

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JMI Reverse Crayford 1" Focuser

JMI Reverse Crayford 1" Focuser For all RCF focusers you must specify whether you want a flat or curved base. For curved bases, you need to specify the radius. If you don't, you will get the standard size radius. Please specify your...

JMI EV-75 Upgrade for Meade LXD55/75 SN-6 / SN-8 / SN-10 $83.00

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JMI EV-75 Upgrade for Meade LXD55/75 SN-6 / SN-8 / SN-10

JMI EV-75 Upgrade for Meade LXD55 / LXD75 SN-6 / SN-8 / SN-10 The EV-75 Upgrade makes the following changes to an EV-1n, EV-2n or EV-3n focuser to prepare it to replace the stock focuser on the Meade Schmidt-Newtonian: 1) Add an Adapter (EV-ADPT5)...

JMI Illuminated Dial for EV Telescope Focusers $56.00

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JMI Illuminated Dial for EV Telescope Focusers

JMI Illuminated Dial for EV Telescope Focusers This upgrade uses an LED to illuminate the focuser positioning dial on any EV focuser. Pressing the switch activates the LED which automatically shuts off (slowly fading to dark). This EV-1c has the...


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