Celestron Focus Motor for SCT and EdgeHD

Product Description

The latest version Focus Motor provides electronic focusing for Celestron Schmidt-Cassegrain (SCT), EdgeHD and RASA 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. A focus motor is great for visual observers who want to dial in exact focus (especially those with dexterity issues) and a must-have accessory for astroimagers. 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 focus motor enables the imager 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.

The Celestron Focus Motor enables electronic focusing using a computer or Celestron computerized mount hand controller for remote hands-free observing and imaging on your Celestron SCT or Edge HD telescope.

Motor controls include multiple speed rates, automatic GoTo indexed focuser position, and focuser backlash compensation.

Focuser Utility software for Windows provides a simple user interface. Also compatible with Celestron PWI.

Enables autofocusing with 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.

Now compatible with the 9.25 EdgeHD.

Powering the electronic focuser
There are three options for powering your Celestron Focus Motor:

When using a Celestron computerized mount, you can power and control the focus motor through the mount using the supplied AUX cable. This allows control from the mount’s hand controller (NexStar+ or StarSense) or a computer.

If you are not using a Celestron mount, you can power and control the focus motor from a computer USB port. You will need a user supplied USB A-to-B cable.

You may also opt to use an external 12V DC power source which plugs into the motor’s power jack. Our power supply (PSU in related products) is compatible with this unit

Compatible Celestron Optical Tubes
The focus motor is compatible with all SCTs from 6” to 14” in aperture that have been produced since the year 2006. It is not compatible with 5” SCTs or older models. It is compatible with the 8” Rowe-Ackermann Schmidt Astrograph (RASA), the 36cm RASA, the 7” Maksutov-Cassegrain, and all the EdgeHD optical tubes.

Compatible Software
Celestron offers a free Focuser Utility program for computer control. The Celestron PWI software can also control the focus motor. To use third-party focuser control software, an ASCOM driver is needed. A software / firmware update on the handset of your telescope maybe required.

Specifications
Motor: DC servo motor
Spur gears: Brass, 1:1 gear ratio, 35.2mm diameter, 42 teeth
Focuser shaft coupler: Aluminum clamping sleeve
Microprocessor: NXP Kinetis series, Arm Coretex-M4 core
AUX port power: Powered by Celestron computerized mount AUX port, connecting cable supplied
USB port power: USB3 or USB2 providing at least 900mA
DC jack power: 12V DC, 1A, 5.5mm/2.1mm tip positive plug
Compatibility: All SCTs produced after 2006 except 5" SCT, all EdgeHD, RASA 8", RASA 36cm, 7" Mak-Cass
Speed rates: 8°sec , 32°sec , 128°sec
Focuser Steps per Revolution: 1000 steps
Weight: 15 oz (.42 kg)