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JMI - MOTOFOCUS for Meade Cassegrain-Round Knob


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Availability: Available



Manufactured by: Jims Mobile, Inc. (JMI)



JMI MOTOFOCUS for Meade Cassegrain-Round Knob


MOTOFOCUS is a battery operated hand control with an electric focus motor that attaches to the shaft of a focuser knob (or the knob itself) for precise, vibration-free focusing without the need to touch the telescope.  It is great for visual and photographic use and features variable speed for coarse and fine adjustments.  Precise positioning is accomplished through electronic braking.  Mounting is easy and requires no drilling or tapping.  Add the optional Digital Read Out (DRO), or Digital Focus Counter (DFC), for improved focusing accuracy and repeatability.


Compatible models:

  • Meade - Cassegrain Telescopes (except ETX and 16")


Some Meade SCTs are not consistent in the focusing mechanism design, so we now identify the appropriate MOTOFOCUS for your equipment by the style of the focus knob (see chart below).

Note: To verify which MOTOFOCUS version you need, please check the Focusing Knob style against the following chart:

Identifying the Correct MOTOFOCUS for Meade Cassegrain Scopes  (Chart 3)
Part No. Knob Style* Identifying Characteristics* JMI Hand Unit
MFMH Hexagonal Six-sided Knob with Three Flat Sides Yes
MFMR Round Cylindrical Yes
MFMRN Round Cylindrical No
* See the picture at the top to identify the Round Focusing Knob (left) vs. somewhat Hexagonal Focusing Knob (right).  The hexagonal knob has three flat "sides."  The other "sides" are curved.
14" SCT Exception:  It appears that ALL Meade 14" SCTs have a ROUND knob with a LARGER diameter than the smaller SCTs and require the MFMH part number.  To verify this information with your 14" SCT, measure the knob diameter (see picture).  It should be 0.975".  If the diameter is 0.865" then order part number MFHR.








Additional Information

Name JMI - MOTOFOCUS for Meade Cassegrain-Round Knob
Manufacturer Jims Mobile, Inc. (JMI)
Model MFMR
Manufacturer Part No MFMR