Jim's Mobile (JMI) NGF-XTn 3" Extreme Focuser for Newtonians
The JMI NGF-XTn is a 3" black-anodized aluminum NGF (Next Generation Focuser) for Newtonian telescopes.



-- Manual "Nano Drive" control is approximately 13 times finer than most rack & pinion focusers.
-- The JMI NGF-XTn includes removable 10" radius curved base.
-- Lifts up to 8 pounds.
-- Zero image shift and zero backlash makes the JMI NGF-XTn fantastic for visual and photographic work and a must for CCD imaging.

JMI NGF-XTn 3" Extreme Focuser for Newtonian Telescopes
The Next Generation Focuser (NGF) 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 NGF is truly a masterpiece of engineering and workmanship that you will be proud to own for years to come.

Specifications:

-- Telescope-Specific Design for Newtonians
-- Inside Diameter of Drawtube 3"
-- Vertical Load Capacity 8 lbs
-- Locking Drag Brake
-- Drawtube Bearings
-- Drive Shaft Bearings
-- Output Adapter Included