Skip to Content

Celestron Focus Motor for SCT and EdgeHD Optical Tubes

  • mfr: 94155
  • SKU: 94155-CELESTRON
In Stock

Available options:

  • Free standard shipping

    *Orders placed before 3 PM EST Mon - Thur will ship the same day. Orders placed beyond these hours will be shipped the next business day. Exclusions apply. See shipping policy

  • Free Local Pickup

    Please call for store stock availability.

    Requests made before 2:30 PM EST can be available for next-day pickup. Learn more

Additional options:

Product highlights

  • Servo motor with microprocessor
  • Sharp, precise focusing
  • Focus via telescope’s hand controller
  • Low, medium, high focus speeds
  • Indexed focus position
  • Powered via computerized mount or PC

Celestron Focus Motor for SCT and EdgeHD Optical Tubes

The Celestron Focus Motor provides electronic focusing using a computer or Celestron computerized mount hand controller for remote/hands-free observing. It is specifically designed for use with Celestron Schmidt-Cassegrain (SCT) and EdgeHD telescope optical tubes. With the focus motor installed, you can bring celestial objects into sharp, precise focus using your telescope’s hand controller or a computer instead of using the focuser knob.

Must-Have Accessory for Astroimagers

A focus motor is great for visual observers who want to dial in exact focus (especially those with dexterity issues). With a motorized focuser installed, an astroimager no longer needs to be physically near the telescope to focus an image. Combined with computerized control of the mount and camera, the motor enables you to gather data remotely from a backyard observatory, or even a telescope located hundreds of miles away. As an added bonus, port covers protect the ports while not in use, and the covers cannot be lost due to the tethered design.


You need not worry about powering the motor. When connected to a Celestron computerized mount, the mount provides the power to the motor. When connected directly to a computer, the motor is powered via USB.

Easy Controls

Motor controls include multiple speed rates, automatic GoTo indexed focuser position, and focuser backlash compensation. In addition, the Focuser Utility software for Windows provides a simple user interface and is also compatible with Celestron PWI. Autofocusing is easy through a camera and third-party software via ASCOM. Indexed focus position allows the motor to automatically return to a previous focus position and prevents the focus motor from reaching the end of telescope’s mechanical focus travel.

Compatible Optical Tubes

The focus motor is compatible with all Celestron SCTs from 6" to 14" in aperture that have been produced since the year 2006. It is also compatible with the 8" Rowe-Ackermann Schmidt Astrograph (RASA), the 36cm RASA, the 7" Maksutov-Cassegrain, and all the EdgeHD optical tubes except for the 9.25". You can also use this focus motor with the 11" RASA tube, but it requires a Focuser Retrofit Kit.


Configuration Core
OTA Only Mount Only
Power 1A
Color Black


Customer Questions
No Questions


Returns are incredibly simple. Please log into your account, find your item you wish to return and follow the prompts to make a return. If you do not have an account, click here to find your order and make a return.
You will receive a full refund when you return an item in its original manufacturer’s packaging, undamaged and unmarked. If the item you are returning is priced at less than $35, you will be charged a 15% restocking fee. Please note you will not be refunded any shipping charges. 
You have 30 days to make a return. During the holiday season, from November 1 to December 31, we extend the return window to 60 days. 
If your order has been noticeably damaged in transit, we strongly recommend that you refuse delivery and notify us immediately. Claims for missing items or items damaged in transit must be made within 48 hours of delivery. If there is carrier damage, please contact [email protected] with your order number and a description of the damage. 
Oh no! Please contact our customer service team so we can resolve the issue immediately. You can call us on 1.800.221.0828, email us at [email protected], or send us a message here.  
We do not currently offer exchanges. Please return the item you purchased within 30 days and order what you’d like instead. 
If you ordered a kit, you must return all components and accessories to receive a full refund. 
If you ordered a product that included a free item, you must include the free item with your return. If not, your return will not be accepted and you will not receive a full refund. 
We currently only offer camera repairs at our Brooklyn store. The item must be dropped off and collected in person as we do not accept shipped items for repair. For more information, please call our Brooklyn store on 1.718.431.7900. 
Most items can be returned within 30 days for a full refund. Click here to read our full return policy. 

Shipping and Returns

Same Day Shipping

All orders placed by 4PM( EST), Monday through Thursday, and by 11AM (EST) on Friday, are shipped same day. Orders placed outside these times will ship the next business day. We do not ship internationally or to Puerto Rico, Guam and other US territories at this time. For more details click here.

Free Two-Day Shipping

We offer free expedited shipping on thousands of items within the continental USA (this does not include Alaska and Hawaii).

Flexible, Easy Returns

If you're not happy with your purchase for any reason, our flexible 30-day free return policy makes it easy to get a full refund. Click here to view our return policy.

Ratings and reviews

Celestron Focus Motor for SCT and EdgeHD

Celestron Focus Motor for SCT and EdgeHD Optical Tubes SKU: 94155-CELESTRON

Rated 5 out of 5 by from Celestron Focus Motor Wins! Great product! I had to remove my FeatherTouch manual focuser that came with my Celestron RASA 11" (version 1) and install a retrofit kit to accommodate the focus motor. Works great with my RASA. Somewhat easy to install if you have a bit of mechanical aptitude. Directions are easy to follow if not. Much better focusing now for imaging.
Date published: 2022-04-29
Rated 5 out of 5 by from Celestron Focus Motor, it’s a game changer for me! I love the fact that at high magnification there is no vibration when focusing. It’s a great investment and takes the frustration out of getting objects in focus.
Date published: 2022-03-29
Rated 4 out of 5 by from Works like a charm once installed. Not for tiny print and ambiguous instructions 5 stars. Installation accomplished despite instructions. Fine focusing is a huge upgrade from manual especially for astro-imaging. Target stars rock steady during focusing. Additional benefit no need to move around to focus when imaging more than one target per night when viewing on laptop. Number values can be entered to achieve near focus for different configurations. Note: this is the old 9.25 SCT incompatible A-model, likely the reason for the lower price compared to other vendors.
Date published: 2022-02-28
  • y_2024, m_6, d_12, h_8
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.42
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_3
  • loc_en_US, sid_94155-CELESTRON, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_focus_camera
  • bvseo_sdk, p_sdk, 3.2.1
  • CLOUD, getReviews, 3.28ms