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MOTOFOCUS™ Telescope Focus Motors

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MOTOFOCUS for Astro-Physics

MOTOFOCUS for Astro-Tech

MOTOFOCUS for Celestron

MOTOFOCUS for Explore Scientific

MOTOFOCUS for GSO

MOTOFOCUS for iOptron

MOTOFOCUS for Meade

MOTOFOCUS for Orion

MOTOFOCUS for Sky Instruments

MOTOFOCUS for Sky-Watcher

MOTOFOCUS for Starlight Instruments

MOTOFOCUS for Synta

MOTOFOCUS for Takahashi

MOTOFOCUS for Tele Vue

MOTOFOCUS for Vixen

MOTOFOCUS for William Optics

MOTOFOCUS Conversion Kit

Information Index

More Pictures


What is MOTOFOCUS?

Customer Comments

Questions (FAQs)

Related Products

MOTODEC Motors

MicroFocus Focus Knobs
 
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MOTOFOCUS Products

 
Astro-Physics
2.7" & 4" Focusers

See Complete List of Equipment at Right



MFAP27
$179

Buy Now
Astro-Physics
2.7" & Traveler Focusers with
Feather Touch

2.7" & Traveler Focusers
with Feather Touch Micro
Upgrade



MFAP27FT
$179

Buy Now
MOTOFOCUS for Astro-Physics 2.7" & 4" Focusers

Apogee 6" Newtonian; Astro-Physics Traveler, 2.7" & 4" focusers, StarFire

Focusers listed above with standard focusing mechanism, Part Number MFAP27
Astro-Physics 2.7" and Traveler Focusers with Feather Touch Micro Upgrade, Part Number MFAP27FT

Astro-Physics Markings on Feather Touch Micro versionr
Feather Touch Markings on Feather Touch Micro version
For the Feather Touch Micro version, please be sure to check the pattern of holes on the drive block (shown here) to verify that your focuser is the same.
 
Astro-Tech
6" RC Astrograph

(with Dual-speed 2" Crayford Focuser)



MFGSO4
$179

Buy Now
Astro-Tech
10" RC Astrograph

(with Dual-speed 2" Crayford Focuser)



MFATRC
$179

Buy Now

MOTOFOCUS for Astro-Tech RC Astrograph

Astro-Tech 6" / 10" RC Astrograph (with Dual-speed 2" Crayford focuser)

Astro-Tech 6" RC Astrograph, Part Number MFGSO4
Astro-Tech 10" RC Astrograph, Part Number MFATRC

MOTOFOCUS for the 6" RC Astrograph
MOTOFOCUS Installed on the 10" RC Astrograph
 
Astro-Tech
AT65ED

Astro-Tech AT65ED Rack-and-Pinion Focuser



MFAT65
$179

Buy Now
MOTOFOCUS for Astro-Tech AT65ED Rack & Pinion Focuser

Astro-Tech AT65ED Rack-and-Pinion Focuser

Be sure to check the pattern of holes on the drive block (shown here) to verify that your focuser is the same.
 
Astro-Tech
AT66ED

Astro-Tech AT66ED Crayford Focuser



MFAT66
$179

Buy Now
MOTOFOCUS for Astro-Tech AT66ED Rack & Pinion Focuser

Astro-Tech AT66ED Crayford Focuser

Be sure to check the pattern of holes on the drive block (shown here) to verify that your focuser is the same.
Front of Focuser
 
Celestron
C8
See Complete List of Equipment at Right



MFC8
$179

Buy Now

MOTOFOCUS for Celestron C8

Celestron early C5 (dual fork arm), C8, C8+, C8-S, C8-SGT, Classic 8, Celestar 8, CGE 800, G-8, Great Polaris C8, NexStar 8 GPS, Polaris C8, Powerstar 8, Super C8, Super C8+, Super Polaris C8, Ultima 8, Ultima 2000

 
Celestron
9¼" SCT
See Complete List of Equipment at Right



MFC9
$179

Buy Now

MOTOFOCUS for Celestron 9¼" SCT

Celestron C9¼-S, C9¼-SGT, CG-9¼, CGE 925, G-9¼, NexStar 9¼ GPS, Ultima 9¼

NOTE

Due to changes in Celestron 9¼ inch telescopes, please verify the correct MOTOFOCUS part number using the following chart:

Identifying the Correct MOTOFOCUS for a Celestron 9¼" SCT  (Chart 1)
Part No. Style Identifying Characteristics
MFC9 Classic Rectangular plate (scope housing) at base of focus knob
MFC9 NexStar Rectangular plate (scope housing) at base of focus knob
MFC8 CPC Orange Ring (scope housing) at base of focus knob
 
  The picture at left shows the MOTOFOCUS for Celestron's Classic and NexStar type 9¼ SCT ready for installation.   Except for the cavity where the knob resides, this is a typical SCT MOTOFOCUS installation.
 
These pictures show the steps to install the Celestron 9¼ SCT MOTOFOCUS.
1) Remove the original focus knob and cover plate (top left).  2) Install the replacement knob (top right).  3) Install the replacement cover plate and attached collar (bottom left).  4) Place the motor sleeve over the collar and tighten the thumb screw (bottom right).  5)  Plug in the hand unit and you are ready to go.  It's that easy!

 

 
Celestron
C11/C14
See Complete List of Equipment at Right

 


MFC11
$179

Buy Now

MOTOFOCUS for Celestron C11/C14

Celestron C11, CG-11, CM-1100, Ultima 11, C14, CG-14, CM-1400, CM-1400GT

NOTE

The Celestron NexStar 11 and CGE 1100 do NOT use Classic C11 style optical tubes.  For MOTOFOCUS for the NexStar 11 and CGE 1100 see MOTOFOCUS for Celestron NexStar 11 GPS below.  To verify which MOTOFOCUS version you need, check the knob ID against the following chart:

Identifying the Correct MOTOFOCUS for a Celestron 11" SCT  (Chart 2)
Part No. Style Identifying Characteristics Knob ID
MFC11 Classic Classic Orange or Black OTA 19mm (0.748")
MFCPC11 CPC/HD Orange Ring at base of focuser knob 21.8mm (0.858")
MFNEX11 NexStar Gray Carbon Fiber OTA 22.8mm (0.898")

 

 
Celestron
CPC 800
Celestron CPC 800 GPS, CPC 925 GPS



MFC8
$179

Buy Now

MOTOFOCUS for Celestron CPC 800

Celestron C9¼-SGT XLT, CGE PRO 925 HD, CGEM 800 HD, CGEM 925 HD, CPC 800 GPS, CPC 925 GPS

NOTE See Chart 1 above if you have questions about this being the correct product.
 
Celestron
11" & 14" HD
11" and 14" OTAs with an Orange Ring around the focus knob



MFCPC11
$179

Buy Now

MOTOFOCUS for Celestron CPC 1100

Celestron CGE PRO 1100 HD, CGE PRO 1400 HD, CGEM 1100 HD, CGEM DX 1100 HD, CGEM DX 1400 HD, CPC 1100 GPS, CPC Deluxe 1100 HD, EdgeHD 11" and 14" OTAs

NOTE See Chart 2 above if you have questions about this being the correct product.
 
Celestron
NexStar 5/8
(Single Fork Arm)
Celestron NexStar 5 / 5i / 8 (non-GPS) / 8i / 8i (XLT)



MFNEX5
$179

Buy Now

MOTOFOCUS for Celestron NexStar 5 / 8 (Single Fork Arm)

Celestron NexStar 5 / 5i / 8 (non-GPS) / 8i / 8i (XLT)

NOTE This MOTOFOCUS unit is compact using a miniature motor and drive belt.   The pictures show partial installation of the NexStar MOTOFOCUS (top left), o-ring and replacement knob installed (top right), side view (bottom left) and completed installation (bottom right).
 
Celestron
NexStar 6 SE
Celestron C6-SGT, NexStar 5 SE / 6 SE / 8 SE, Omni 127



MFNEX6
$179

Buy Now

MOTOFOCUS for Celestron NexStar 6 SE

Celestron C6-SGT, NexStar 5 SE / 6 SE / 8 SE, Omni 127

NOTE MOTOFOCUS for the Celestron NexStar 5", 6" and 8" SE uses a miniature motor in a very small package.
 
Celestron
NexStar 11 GPS
Celestron C11-SGT, CGE 1100, NexStar 11 GPS



MFNEX11
$179

Buy Now
MOTOFOCUS for Celestron NexStar 11 GPS

Celestron C11-SGT, CGE 1100, CGE 1400, NexStar 11 GPS

NOTE See the Chart 2 above if you have questions about this being the correct product.
 
Celestron
NexStar 127 SLT
NexStar 127 SLT
Maksutav-Cassegrain



MFOSM
$179

Buy Now
MOTOFOCUS for Celestron NexStar 127 SLT

Celestron NexStar 127 SLT Maksutav-Cassegrain

NOTE This images shows the MOTOFOCUS unit mounted on an Orion StarMax 127.  This MOTOFOCUS unit uses a miniature motor.

 

 
Celestron
Onyx
Celestron Onyx 80EDF



MFONYX
$179

Buy Now

MOTOFOCUS for Celestron Onyx

Celestron Onyx 80EDF

NOTE MOTOFOCUS for the Celestron Onyx 80EDF uses a miniature motor.
 
Celestron
Refractors with
Rack-and-Pinion
See Complete List of Equipment at Right



MFCREF
$179

Buy Now

MOTOFOCUS for Celestron Refractors

Celestron C4-R, C4.5, C6-N, C6-R, C6-RGT, C8-N, C8-NGT, C10-N, C10-NGT, C60, C70, C100, C102, CR-150, Firstscope 80 (not 114), G8-N, NexStar 80 (not 114), Super Polaris 80 / 102

 
Explore Scientific
 AR-127
Explore Scientific
AR-80 / -102 / -127



MFESAR127
$179

Buy Now
MOTOFOCUS for Explore Scientific AR-127

Explore Scientific AR-80 / AR-102 / AR-127 / AR-152

Be sure to check the pattern of holes on the drive block (shown here) to verify that your focuser is the same.

 

 
GSO
Crayford Focusers
(Without Microfocuser)
Configuration TWO*



MFGSO2
$179

Buy Now

MOTOFOCUS for GSO Crayford Focusers

* Click here to see Configuration Information.

This image shows the Newtonian version of the GSO / William Optics Crayford focuser with JMI MOTOTOCUS attached (MFGSO2).
This rear view picture shows some of the variations between different GSO / William Optics focusers.  The left side shows our MFGSO2 (configuration two) installation and on the right is the MFWO1 (configuration one) installation.
This front view picture shows some of the variations between different GSO and William Optics focusers.
This picture shows a William Optics Crayford focuser with MOTOFOCUS (MFGSO2).  Attaching the MOTOFOCUS unit is a very simple process.  The system is gear driven using a miniature motor.
The GSO and William Optics 2" Crayford focusers are available for SCT, Refractor and Newtonian telescopes.  This image MOTOFOCUS (MFGSO2) with the included JMI hand unit.

 

 
iOptron
MC 90
iOptron MC90



MFMC90
$179

Buy Now
MOTOFOCUS for iOptron MC90

iOptron Cube-E MC90, Cube-G MC90, Cube-A MC90

This image shows a close-up view of MOTOFOCUS for the MC90 (power cord not shown).  The original focusing knob is removed and JMI equipment added using supplied tools.  As usual, installation is very easy.

 

 
Meade Cassegrain
Hexagonal Knob
Includes JMI Hand Unit
(See Chart)



(Formerly MFLXGPS)
MFMH
$179

Buy Now
Meade Cassegrain
Round Knob
 
Includes JMI Hand Unit
(See Chart)



(Formerly MFLX2)
MFMR
$179

Buy Now
Meade Cassegrain
Round Knob
NO JMI Hand Unit
(See Chart)



(Formerly MFLX200)
MFMRN
$129
Buy Now
MOTOFOCUS for Meade Cassegrain Telescopes

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 left 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.

 

NOTE

The MFMRN (No JMI Hand Unit) MOTOFOCUS is equipped with a built-in variable-speed adjustment.  It plugs into the telescope base allowing control from the Meade hand unit, with the following restrictions:  Our hand units include an electronic brake which stops the motor as soon as you quit pressing the keys.  Meade systems do not include this brake.  Older LX200 telescopes do not have enough power on the low setting to run a MOTOFOCUS unit.  The high setting works fine and you can vary the speed using the variable-speed feature of the MOTOFOCUS unit itself.

 
Meade
ETX
Meade ETX-90, ETX-105, ETX-125 (Original, EC and PE versions)



MFETX
$179
Buy Now

MOTOFOCUS for Meade ETX

Meade ETX-90 (non-EC version), ETX-90EC, ETX-90PE, ETX-105EC, ETX-105PE, ETX-125EC, ETX-125PE

MOTOFOCUS is especially important for the ETX when viewing near Zenith (in Alt-Az mode) because it is very hard to reach the focus knob at this position.  We use miniature motors (motor and gear box size is 1" x 0.5" x 0.375"!) for a very small package.

The hand unit cord is plugged into the side of the miniature motor assembly.
The MOTOFOCUS hardware does not interfere with vertical operation at Zenith
 
Meade
ETX-LS 6" / 8"
Meade LS-6, LS-8



MFLS6
$179

Buy Now
MOTOFOCUS for Meade ETX-LS 6"

Meade ETX-LS 6", ETX-LS 8", LS-6, LS-8

MOTOFOCUS on Meade ETX-LS 6" Telescope
 
Meade
LT-6 / 8
Meade LT-6, LT-8



MFLT
$199

Buy Now
MOTOFOCUS for Meade LT

Meade LT-6, LT-8

 
Meade
Lightbridge
with Single-Speed Focuser



MFGSO2
$179

Buy Now
Meade
Lightbridge
with Dual-Speed Focuser



MFGSO4
$179

Buy Now
MOTOFOCUS for Meade LightBridge

Meade Lightbridge 8" / 10" / 12" / 16"; GSO M-CRF230 Dual-Speed Focuser with microfocus

Single-Speed Crayford Focuser, Part Number MFGSO2
Dual-Speed Crayford Focuser, Part Number MFGSO4

NOTE

These MOTOFOCUS units use a miniature motor.
Lightbridge Dual-Speed (GSO) Focuser without MOTOFOCUS
Lightbridge Dual-Speed (GSO) Focuser with MOTOFOCUS
Lightbridge Dual-Speed (GSO) Focuser MOTOFOCUS
 
Meade
LXD75 SN Reflectors
Meade LXD55 / LXD75
SN-6 / SN-8 / SN-10



MF55L
$179

Buy Now
MOTOFOCUS for Meade LXD75 SN Reflectors

Meade LXD55 SN-6 / SN-8 / SN-10, LXD75 SN-6 / SN-8 / SN-10

 
Meade
Series 5000
with Dual-speed Focuser
ED APO 80 / 102 / 127
with dual-speed Crayford focuser



MFESAR127
$179

Buy Now

MOTOFOCUS for Meade Series 5000 ED APO Refractors

Meade Series 5000 ED APO Refractors 80mm / 102mm / 127mm

Series 5000 with Dual-speed Crayford Focuser

Dual-Speed Focuser
Be sure to check the pattern of holes on the drive block of the dual-speed focuser (shown here) to verify that your focuser is the same.
 
Meade
Starfinder
See Complete List of Equipment at Right



MFCREF
$179

Buy Now

MOTOFOCUS for Meade Starfinder

Meade Starfinder German equatorial 6 / 8 / 10 (metal focuser), Starfinder Dobsonian 6 / 8 / 10 / 12.5 / 16, Meade #71 / #77 focusers.

 
Orion
Crayford Focuser
(Single-Speed Version)
See Complete List of Equipment at Right



MFOCRAY
$179

Buy Now

MOTOFOCUS for Orion Crayford Focuser (with Single-Speed Focuser)

Orion ED80 / ED100 Apo Refractors, SkyQuest XT8 / XT10 / XT12 (with Crayford focuser), SkyView Pro 8 EQ / 80 EQ / 100 EQ

NOTE The Orion 80mm and 100mm ED Apochromatic Refractors use a Crayford focuser.  Our MOTOFOCUS unit designed for the Orion Crayford focuser, includes a mounting bracket, miniature motor, two gears, hand unit (not shown) and power cord (not shown).  The motor can be easily disengaged for manual focusing.  This model will not work on the Dual-Speed version (see below).
 
Orion
Crayford Focuser
(Dual-Speed Version) SkyQuest XT8 / XT8g Dobsonian



MFSWPRO
$179

Buy Now
MOTOFOCUS for Orion Crayford Focuser (with Dual-Speed Focuser)

Orion SkyQuest XT8, XT8g Dobsonian

This picture shows a close-up of the drive area on a Sky-Watcher Pro 80ED.  This MOTOFOCUS will work for an Orion Crayford Focuser with Dual-speed Knobs.  Be sure to check the pattern of holes on the drive block (shown here) to verify that your focuser is the same.  For other possible configurations, Click Here.
 
Orion
Rack-and-Pinion Focusers
See Complete List of Equipment at Right



MFCREF
$179

Buy Now

MOTOFOCUS for Orion Rack-and-Pinion Focusers

Orion Astroview 120 (formerly Skywatcher 120), ShortTube 80 / 90, SkyQuest XT4.5 / XT6 / XT8 / XT10 (with rack-and-pinion focuser), SkyView Deluxe 4.5 EQ / 6 EQ / 8 EQ, SkyView Pro 6 EQ / 6LT EQ / 8 EQ / 100 EQ / 120 EQ, VX80, VX102 GP

Fits on Orion's 1.25" and 2" rack-and-pinion focusers manufactured by Vixen.

 
Orion
StarMax 127
Orion StarMax 127



MFOSM
$179

Buy Now

MOTOFOCUS for Orion StarMax 127

Orion StarMax 127

This picture shows the parts for Orion StarMax 127 MOTOFOCUS (including a miniature motor shown at top left in the picture).

 

 
Sky Instruments
Antares 120
Sky Instruments Antares 120



MFCREF
$179

Buy Now
MOTOFOCUS for Sky Instruments Antares 120

Sky Instruments Antares 120

 
Sky-Watcher
Equinox Pro Series
Sky-Watcher Equinox



MFWO7
$179

Buy Now
MOTOFOCUS for Sky-Watcher Equinox Pro Series Refractors

Sky-Watcher Equinox Pro 80ED / 100ED / 120ED

NOTE

Be sure to check the pattern of holes on the drive block (shown at left) to verify that your focuser is the same.  For other possible configurations, Click Here.
 
Sky-Watcher
Pro 80ED (Black Diamond)
Sky-Watcher Pro 80ED
(Black Diamond)



MFSWPRO
$179

Buy Now

MOTOFOCUS for Sky-Watcher Pro 80ED Refractors

Sky-Watcher Pro 80ED (Black Diamond)

This picture shows a close-up of the drive area on a Sky-Watcher Pro 80ED.  Be sure to check the pattern of holes on the drive block (shown here) AND REDUCER (small outside) KNOB SIZE to verify that your focuser is the same.  For other possible configurations, Click Here.
 
Starlight Instruments Feather Touch Focusers
See Complete List of Equipment at Right



MFFT
$219

Buy Now

MOTOFOCUS for Starlight Instruments Feather Touch Focusers

Starlight Instruments Feather Touch FTF2015(B) / FTF2020(B) / FTF2025(B); Celetron C8 with SCT Micro; Stellarvue Refractors with 2" Feather Touch Focuser (80ED Deluxe, SV102ED with optional Feather Touch, SV80S, SV90T, SV4, SV115T, SV115T20)

NOTE The slow motion knob can still be used for manual focusing without removing the miniature motor.
Our MOTOFOCUS fits the Feather Touch SCT Micro for the C8 (Feather Touch replacement for an SCT focusing knob).

Photo courtesy of Patrick Rian.
 
Synta
Sky-Watcher
Maksutov
Synta Sky-Watcher 127 Maksutov Focuser



MFOSM
$179

Buy Now

MOTOFOCUS for Synta Sky-Watcher Maksutov Focuser

Synta Sky-Watcher 127 Maksutov Focuser

NOTE This images shows the MOTOFOCUS unit mounted on an Orion StarMax 127.  This MOTOFOCUS unit uses a miniature motor.
 
Synta
Sky-Watcher
Rack-and-Pinion
Synta Sky-Watcher Rack-and-Pinion Focuser



MFCREF
$179

Buy Now

MOTOFOCUS for Synta Sky-Watcher Rack-and-Pinion Focuser

Synta Sky-Watcher Rack-and-Pinion Focuser

 
Takahashi
2.7" Focuser
(Without Microfocuser)
See Complete List of Equipment at Right



MFTAK
$179

Buy Now

MOTOFOCUS for Takahashi 2.7" Focuser

Discovery 8" EQ; Takahashi Epsilon-200, FC-60, FC-65, FC-76, FC-100, FC-100N, FC-125, FCT-65, FCT-76, FCT-125, FS-60, FS-78, FS-102, FS-128, FS-128G, MT-130, MT-160, MT-200, SKY-90  (Specify telescope model.)

(i.e. most Takahashi models except CN-212, FCT-150, FS-152, FSQ-106, Mewlon, MT-250, MT-300 and TSC.)

This MOTOFOCUS unit is not compatible with any microfocuser accessory.

 
Takahashi
4" Focuser
(Without Microfocuser)
FS-152, FSQ-106



MFTAK4
$179

Buy Now
Takahashi
4" Focuser
(With Microfocuser)
FSQ-106ED



MFTAK4M
$179

Buy Now

MOTOFOCUS for Takahashi 4" Focuser

Takahashi (without microfocuser) FS-152, FSQ-106; Takahashi (with microfocuser) FSQ-106ED

Without Microfocuser, Part Number MFTAK4
With Microfocuser, Part Number MKTAK4M

This picture shows MOTOFOCUS for a Takahashi 4" focuser with an integrated DRO encoder.  The system is installed on a Takahashi FSQ-106ED with microfocuser.
MOTOFOCUS on Takahashi 4" Focuser with Microfocuser
 
Tele Vue
Refractors
(Without Focusmate microfocuser)
See Complete List of Equipment at Right



MFGEN
$179

Buy Now

MOTOFOCUS for Tele Vue Refractors

Tele Vue Genesis, Oracle, Pronto, Renaissance, Renaissance-101, Solaris, Tele Vue-76, Tele Vue-85, Tele Vue-101, Tele Vue-102, Tele Vue-NP101

This MOTOFOCUS unit is not compatible with the Focusmate fine focus accessory.

 
Vixen
2.7" Focuser
(C-Style Mounting)



MFCREF
$179

Buy Now
Vixen
2.7" Focuser
(V-Style Mounting)



MFVREF
$179

Buy Now

MOTOFOCUS for Vixen 2.7" Focuser

Orion (Refractors with Vixen rack-and-pinion focuser); Sellarvue (Refractors with Vixen rack-and-pinion focuser); Vixen 2.7" Focuser (e.g. ED103S and NA140SS)

Without Protruding Telescope Mounting Block (see C style below), Part Number MFCREF
With Protruding Telescope Mounting Block (see V style below), Part Number M
FVREF

NOTE Please verify the style of your telescope housing as shown below.  This will help you determine which style (C or V) and therefore which part number (MFCREF or MFVREF) to purchase.
This picture shows the newer Vixen Refractor housing style where the Telescope Mounting Block (left) is protruding higher than the Focuser Tension Plate (right).  This style uses the MFVREF (V Style) part number.  (The focuser tension plate is where MOTOFOCUS is mounted.)  With the C-style housing, the focuser tension plate is higher than any other part of the housing in the immediate vicinity.
This picture shows the two styles of MOTOFOCUS mounting brackets, the older C style (left) and newer V style with shaft expander (right).
 
Vixen
VC200L
See Complete List of Equipment at Right



MFV200
$179

Buy Now

MOTOFOCUS for Vixen VC200L

Vixen 200mm VISAC (Vixen Sixth-Order Aspheric Cassegrain), R200SS, VC200L, VC200LDG, VMC200L, VMC200LDG

 
William Optics
Crayford Focusers
(Without Microfocuser)
Configuration ONE*



MFWO1
$179

Buy Now
William Optics
Crayford Focusers
(With Microfocuser)
Configuration THREE*



MFWO3
$179

Buy Now
William Optics
Crayford Focusers
(With Microfocuser)
Configuration FIVE*



MFWO5
$179

Buy Now
William Optics
Crayford Focusers
(With Microfocuser)
Configuration SIX*



MFWO6
$179

Buy Now
William Optics
Crayford Focusers
(With Microfocuser)
Configuration SEVEN*



MFWO7
$179

Buy Now
William Optics
Crayford Focusers
(Digital Display Gauge)
Configuration DDG1*



MFWODDG1
$179

Buy Now
William Optics
Crayford Focusers
(Digital Display Gauge)
Configuration DDG2*



MFWODDG2
$179

Buy Now

MOTOFOCUS for William Optics Crayford Focusers

* Click here to see Configuration Information.

This image shows the Newtonian version of the GSO / William Optics Crayford focuser with JMI MOTOTOCUS attached (MFGSO2).
This rear view picture shows some of the variations between different GSO / William Optics focusers.  The left side shows our MFGSO2 (configuration two) installation and on the right is the MFWO1 (configuration one) installation.
This front view picture shows some of the variations between different GSO and William Optics focusers.
This picture shows a William Optics Crayford focuser with MOTOFOCUS (MFGSO2).  Attaching the MOTOFOCUS unit is a very simple process.  The system is gear driven using a miniature motor.
The GSO and William Optics 2" Crayford focusers are available for SCT, Refractor and Newtonian telescopes.  This image MOTOFOCUS (MFGSO2) with the included JMI hand unit.
This Megrez 90 focuser uses configuration five (MFWO5)
This Replacement Focuser for Synta-made Refractors uses configuration five (MFWO5).
This Megrez 110 Focuser uses configuration six (MFWO6).
This Sky-Watcher Equinox 80 Pro Focuser uses configuration seven (MFWO7).
 
MOTOFOCUS
Conversion Kit
See Restrictions at Right



MFCNVRT
$69

Buy Now*

MOTOFOCUS Conversion Kit

The conversion kit includes all necessary hardware to convert many current MOTOFOCUS units for use on a different telescope.  It does not include the motor, cable or hand unit.  (Specify information regarding the ORIGINAL and DESTINATION telescope models.)

CONVERSION RESTRICTIONS:  The conversion kit is for SCT (focus knob push-on style) and Rack-and-Pinion (pear motor style) MOTOFOCUS units ONLY.  We can convert from one SCT style to another and we can convert from one Rack-and-Pinion style to another but NOT BETWEEN the two styles.

We also cannot convert to or from MOTOFOCUS units designed for Crayford focusers or those with miniature motors.  For example, we cannot convert to or from models designed for the following:  Meade ETX focus knob (not including LS), Single fork arm NexStar focus knob, Orion StarMax focus knob, Feather Touch Crayford, William Optics Crayford, GSO Crayford and Celestron Onyx Crayford.

SCT conversions include (as necessary):  sleeve, collar, coupler, knob, setscrew and hex wrench.
Rack-and-Pinion conversions include (as necessary):  bracket, coupler, shaft expander, setscrew and hex wrench.

* When ordering, place a note in the shopping cart Comments area identifying the ORIGINAL and DESTINATION telescope equipment.  Please read the CONVERSION RESTRICTIONS notes above.

NOTE

The parts included in your conversion kit will depend on your Original and Destination models and may not match the pictures shown here.
A Sample Conversion Kit (including the instruction sheet)
A Sample Conversion Kit
A Sample Conversion Kit
This picture shows the parts of a Push-on style MOTOFOCUS system.  Parts vary some in size and shape but the basic shape and function remain the same as shown in this diagram.


There are two basic types of MOTOFOCUS.  On the left is a Meade Rack-and-Pinion focuser with MOTOFOCUS attached.  On the right is a Push-On type MOTOFOCUS for a Meade LX style scope.


What is MOTOFOCUS?

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.


Customer Comments

"I appreciate all the help I was given by the employees at JMI, especially...patience with my lack of expertise and knowledge.  This type of professionalism will make me a return customer."  (T. A. L.)

"I handed the MOTOFOCUS to my husband as soon as I arrived home...and we were both fascinated.  Excellent product, easy installation and now our telescope has been enormously upgraded."  (M. M. D.)

"I purchased two JMI MOTOFOCUSers and found both to be very high in quality and workmanship, also fairly priced....  I would recommend JMI products and service to everyone.  This company has its act together."  (J. S.)

"Attaching your MOTOFOCUS for my Williams Optics Microfocuser was simpler than I ever expected, and it worked like a charm, to boot!  Great engineering = great products !!!"  (G. B.)

"I recently purchased from you a motorized focuser for my ETX-105.  It has transformed my viewing.  It is almost like having a new and better telescope.  Congratulations and thanks!"  (N. M.)

"An excellent all round service with great delivery.  Many thanks for a great product."  (M. B.)

"...  As for the product, it has made my viewing 110% easier.  The MOTOFOCUS is very easy to install on the telescope.  It took me less than two minutes.  I would recommend this item to anyone who owns a Celestron 5, 6 or 8 SE.  It will make their viewing experience much easier and more enjoyable."  (T. S.)

"Most of the time, customers write to complain, but we should write also when satisfied!  I have received my conversion kit and I transferred flawlessly my C8 MOTOFOCUS to my NexStar 11 GPS.  I am very pleased to see a company that allows its customers to update its product rather than to force them to buy a brand new one by creating artificial incompatibilities.  Too many times such questionable marketing practices are used.  This is not the case with JMI.  One should note that my C8 MOTOFOCUS was more than 10 years old and still eligible for an upgrade.  Try to get this in the computer world...  So thank you and let me add that the JMI MOTOFOCUS is simply a mandatory accessory on a telescope.  And you can quote me if you will."  (Olivier Sanguy, Editor in Chief of ESPACE Magazine)

"Needed a replacement or repair on an old MOTODEC and MOTOFOCUS for an old C8.  Spoke with the technician who then sent me the parts I needed and instructions on how to do my own repairs.  Saved me a lot of money.  Much appreciated and everything worked great!  That was very good service."  (P. J. H.) 

"I am wondering when you guys are gonna release that cloud filter that allows me to see through the clouds?  j/k ;)  You guys are like super heroes in the telescope world!"  (C. F.)

"MOTOFOCUS for my NexStar 8i worked like a charm.  Nice bit of engineering and packaging.  (T. U.)

"Just a brief note to tell you how happy I am with the recent purchase of the JMI MOTOFOCUS unit for my Celestron 9.25".  I have it on a Vixen Sphinx Mount which is pushing the upper limit of this mount, so an effective auto-focus unit is a must as it does take some time to dampen any vibrations.  Your unit worked perfectly out of the box and has made it a pleasure to get [it] accurately focused (and I'm usually far too busy to send an email like this unless the product really did exceed all my expectations).  (C. E. S. D.)

"Your MOTOFOCUS (MFCREF) with my Vixen Refractor ED102SS [is] Great!"  (J. C.)

"I received the MOTOFOCUS in the mail yesterday and must say it is fine craftsmanship. ...thanks for making such a quality item."  (D. B.)

(see previous comments about the NGF-SE)  "...I've been using one of your focus motors on my CG-11 for years.  I recently converted it to use on my LX200 with one of your conversion kits.  Everything has ALWAYS worked perfectly.  My hat is off to you and your fine company."  (D. A. J.)

"...My first purchase (from JMI) was a MOTOFOCUS ... I have nerve damage in my arms and focusing was a real chore.  Not any more!  I was so pleased, that when I was looking for an after-market set of electronic setting circles, I researched them all and purchased the NGC-MAX..."  (see continuing comments about the NGC-MAX)  (R. L.)

"...BTW, I'm a MOTOFOCUS owner and it's the best purchase I've made yet.  Great products you have there!   Thanks bunches!"  (P. L.)

"I don't know how I got along without (MOTOFOCUS)!   ...  I love your products.  There ought to be a law requiring all telescope venders to include a JMI catalogue with every scope."  (L. W. D.)

"It is nice to deal with a company that is sincerely committed to offering a top-quality product and backing it up with customer service to match.  Needless to say, whenever I need an accessory for my scope, I'll call JMI."  (J. E. G.)


Frequently Asked Questions (FAQ)


Q. What is the difference between a Focuser and MOTOFOCUS?
A. A focuser is the mechanical device that moves an eyepiece (or other equipment) in and out to bring an image into focus.  On the other hand, MOTOFOCUS units are designed to be attached to the shaft of a focuser knob (or the knob itself) to motorize the movement of the focuser.  It allows the focuser to be moved in or out without touching it.  Touching the focuser usually causes unwanted movement in the whole telescope.
   
Q. Are your MOTOFOCUS motors AC or DC powered?
A. All JMI MOTOFOCUS motors are DC powered.  The unit designed for the Meade LX200 plugs into the telescope control panel and is controlled by the LX200 hand unit.  All other MOTOFOCUS units are designed to operate with a JMI hand unit.  These hand units include variable speed control and electronic braking and are powered by a single 9-volt battery (or two 1.5-volt AA batteries in a few older hand units).
   
Q. How much focusing control does a MOTOFOCUS give?
A. With practice, you can move the focuser drawtube in increments much smaller than the thickness of the average business card.
   
Q. How is the MOTOFOCUS unit attached to the telescope?
A. All MOTOFOCUS units designed for rack-and-pinion focusers attach the same way.  One of the focuser knobs is removed and the MOTOFOCUS coupler is pushed over the exposed drive shaft.  The motor bracket is then secured to the focuser.   The units made for SCTs are friction-driven push-on motors that go on and off the focus knob in seconds for easy storage.
   
Q. Can I get some kind of visible readout of drawtube position?
A. Yes!  Simply order the Digital Read Out (DRO) upgrade or Digital Focus Counter (DFC) upgrade at the same time you order your MOTOFOCUS.  Since the upgrades are integrated during manufacturing, they cannot be added later.  DRO and DFC upgrades are not available for ETX and NexStar telescopes.
   
Q. Are there any telescopes for which you do not make a MOTOFOCUS?
A. Helical and slide tube type focusers are not suitable for MOTOFOCUS.  We also do not make a MOTOFOCUS unit for any focuser that is physically unable to support the system.
   
Q. Do you have MOTOFOCUS for telescopes not listed here?
A. We have MOTOFOCUS units for many older telescopes.  Even if your equipment is not listed, we may still have parts in inventory.  However, the cost will be much higher than for those shown in our online store.