JMI NGF-S Crayford style focuser
designed for use on SCT Telescopes. Includes focuser, handcontroller and
all originally supplied adapters. The adapters give the option of 1.25”
female push fit, male T thread and SCT male thread as well as the standard
2” female push fit. The focuser gives 1/2" of travel and is designed for
fine focus after rough adjustment with the normal telescope focuser knob.
In my opinion this type of focuser
is almost mandatory for imaging with a moving mirror SCT.
Very good condition and operates
JMI NGF-S large format adapter
with integral light shield. Shown at top left.
Allows direct connection of the NGF-S focuser to the larger rear port of
10-inch or larger SCT’s to help reduce vignetting. As new, £25 separately
or £165 with NGF-S.