Rigel Systems
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Computerized Celestron SCT Motor Focusing
from pc, pushbuttons & wifi
and now Meade SCTs

Fully ASCOM compliant so it will work with popular focus control programs. Can be operated for temperature compensation with the included temperature sensor. USB and 12V battery power cables included. Software and ASCOM drivers for Windows xp/vista/7/8/10. Approximately 1.5 inches wide by 4 inches long by 0.5 inches thick.

Fully control your focuser from apple & android phones and tablet
using web browser

Gear coupled motor prevents binding of focuser shaft and provides the equivalent of 4300 steps per revolution.
Supports fast focusing with up to300 degrees/sec rotation of focuser knob
Light weight motor only adds 160 grams and does DOES NOT HIT the mount at high Altitudes/Declinations.
Gear coupled motor easily declutched for manual focusing using focus knob.

Standard Celestron kits to fit 6, 7, 8, 9.25, 11, 14 inch models made since 2006.


MODULAR - Buy just the components you need. Affordable upgrade path to more nFOCUS features and online firmware improvements. Unlike all-in-one boxes, Modular design provides easy repair or replacement of components.
Since 2010 with over 1000 installs.  Fully checked out for compatibility with the most advanced Autofocus software, including ASCOM and INDI drivers.
We are responsive to special user needs, such as higher resolution temperature measurements, custom bracket kits for one-of-a-kind and classic SCT telescope focusers at no extra charge.
Tech Support
Prompt. Friendly, responsive  via e-mail right here in USA with the owner and our SW/HW guru, as well as via our online forum. We've supported many remote customers in the field as far away as Chile and Australia on a time critical basis.
Step resolution
Gear coupling of motor to focus shaft provides the equivalent of 4300 steps per revolution 

Max Focus Knob Rotation Speed

Very FAST >300 deg/sec
12V power for stepper
usb to 12V power cable included FREE for use with any spare USB phone wall charger or powered USB hub to supply 12V DC for the stepper.
bracket kits & gear ease of installation.
Tailored to Celestron focusers for ease of attatchment, each kit contains all the parts needed for each particular focuser. Standard Celestron kit fits all 6, 8, 9.25, 11, 14 inch telescopes made since 2006.  Kits available for older scopes available as semi-custom kits at no extra charge.
Adding more scopes
User can add just a bracket and gear kit ($70) to a different SCT and move the focus motor or add bracket and motor ($100) and just swap the wifi-nFOCUS between them.
temp sensor
Included FREE   with full controller/stepper package, has its own dedicated port.   0.1 degree C resolution per measurement
Manual Focusing with focuser knobs
Gear coupled motor easily declutched for manual focusing using focus knob.
hand controller focusing
 Integrated two speed push buttons with independent manual speed control. Position kept in sync whether moved by  PC or push buttons. 
 wifi  focusing
 wifi provides full focusing control from Android or Apple phones and tablets using web browser.  Position synchronized whether changed by  PC, wifi web browser or integrated push buttons. 
Standalone operattion

Focus using wifi phone or integrated push buttons
without PC

Added Weigh on Telescope
mere 160 grams
Interference with Mount at high elevations

Fully compatible with Celestron SCTs from 2006 to present with standard Celestron and Micrtouch focusers
And now, MEADE SCTs (please e-mail )

(telescope not included)

Wifi-nFOCUS + 12V DC Encoded Focus Motor $309.90

Select Telescope Focuser
Telescope Size

What's included

  1. wifi-nFOCUS
  2. USB PC cable
  3. Focus motor cable
  4. USB to 12V DC adapter cable to power the Focus motor
  5. Focus motor + bracket & gear kit and all hardware to quickly attach to focuser
  6. Instructions
  7. Temperature Sensor



Download software for WINDOWS

wifi-nFOCUS software for WINDOWS

wifi-nFOCUS manual for WINDOWS