Low-Profile 1.25in Focuser for Newtonian on 3inch Base The Lumicon Low Profile 1.25" Focuser for Newtonian on 3in Base is a high-precision, pin-and-groove type helical focuser. The draw-tube does not rotate. The low-profile design quickly and...

JMI Reverse Crayford 2" Focuser with Motor A 1.25" Reverse Crayford focuser.  Motorized version include a standard hand unit.  For all RCF focusers you must specify whether you want a flat or curved base.  For curved bases, you need to...

JMI Reverse Crayford 1¼" Focuser with Motor 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...

JMI NGF-XT Focuser  (Cassegrain)   A 3" black-anodized (gold-anodized optional) aluminum "Extreme" focuser designed for use on large (10" to 16") Cassegrain Telescopes (NGF-XTc) with standard output threads and Newtonian...

JMI NGF-XT Focuser  (Newtonian with Motor)   A 3" black-anodized (gold-anodized optional) aluminum "Extreme" focuser designed for use on large (10" to 16") Cassegrain Telescopes (NGF-XTc) with standard output threads and...

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...

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 EV-3 Telescope Focuser (Refractor with motor) The Event Horizon EV-3 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....

JMI EV-3 Telescope Focuser (Newtonian with motor) The Event Horizon EV-3 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....

JMI EV-3 Telescope Focuser (Cassegrain with motor) The Event Horizon EV-3 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....

JMI EV-2 Telescope Focuser (Refractor with motor) The Event Horizon EV-2 is a 2" black-anodized aluminum focuser with rubber grip knobs.  The focuser lifts up to 8 pounds.  Manual control is over 1½ times finer than most rack-and-pinion...

JMI EV-2 Telescope Focuser (Newtonian with motor) The Event Horizon EV-2 is a 2" black-anodized aluminum focuser with rubber grip knobs.  The focuser lifts up to 8 pounds.  Manual control is over 1½ times finer than most rack-and-pinion...

JMI EV-2 Telescope Focuser (Cassegrain with motor) The Event Horizon EV-2 is a 2" black-anodized aluminum focuser with rubber grip knobs.  The focuser lifts up to 8 pounds.  Manual control is over 1½ times finer than most rack-and-pinion...