Falcon Rotator

Pegasus Astro – Falcon Rotator is a light-weighted, low profile camera field rotator. Do not be fooled by its thin size! It can lift and handle heavy image trains – dead accurate! Very easy to operate via ASCOM drivers or standalone software will make your life easier to automatically adjust with precision your camera field.

Falcon Rotator

Low profile / M54 threaded

Thickness of the rotator is 18mm / 0.7”.
When you use the M54 to M48 adapter the backfocus is +1mm (18+1 = 19mm)
Weight is 700grams. Both openings of the rotator are M54 threaded (pitch 0.75mm)

Adapters for both sides (included)

We provide two different adapters for both sides:

  • Telescope Side: M54 male to 2” Nosepiece (1.5mm thickness)
  • Camera Side: M54 Male to M48 Male Adapter (2.0mm thickness)

    For optional adapters click here

The M54 adapter black ring on the camera side of the Falcon Rotator sticks out by almost 1mm (so actual back-focus is 18+1 =19mm)

Backfocus drawing can be found below (click for enlarge):

If you use the nosepiece and the M54 adapter this sums a 22.5mm of backfocus
(Nosepiece is 1.5mm + 19mm rotator + 2mm M54 Male to M48 Male)

Precise rotation

A powerful geared / low backlash stepper motor ensures that the rotator will lock to the designated degrees. Mechanics inside the focuser guarantee zero flex in any point during a full circle rotation.

Falcon Rotator

Rated load

Falcon Rotator has been tested at 6Kg / 13.2lbs of imaging setup.
The 6 stainless steel branded bearings can easily handle higher payloads with zero flexure.

Cable Wrap Prevention

Rotator does not allow a clockwise turn above 220 degrees. It will turn anti-clickwise when it has to be moved above 220 degrees. A nice cable wrap/snag prevention feature out of the box.

Optional adapters available

De-Rotation support for Alt/Az mounts

Rotator has the mechanical precision to achieve field de-rotation. Supplied software calculates Rate of Rotation (RoR) based on the site latitude, target altitude and azimuth position.

Examples of images taken with Falcon Rotator & Derotation on a Dobsonian Telescope



ASCOM & INDI Support

Rotator fully supports latest ASCOM 6.5.

INDI is also supported via latest (currently nightly build) of INDI

Standalone Software

Control the Falcon Rotator from the supplied standalone Windows software.

In the box

  • Falcon Rotator
  • M54 male to 2” Nosepiece
  • M54 Male to M48 Male Adapter
  • USB TypeB cable (1.8m)
  • Cigarette lighter adapter to 2.1mm plug (3A fused)


in milimeters

Falcon Rotator


Physical Size180mm x 140mm x 56mm
MaterialBlue Anodised Aluminium
Clear Aperture54mm / 2.13”
Steps per degree86.6 steps per degree (31.192 steps per full revolution)
(full step drive – can be increased with microstepping)
Payload6Kg / 13.2lbs
Telescope AdapterM54 male to 2” Nosepiece (included) (0.75mm pitch)
Camera AdapterM54 Male to M48 Male Adapter (included) (0.75mm pitch)
Back Focus18mm / 0.7” (+1mm if you place M54 adapter)
Weight0.7Kg / 1.54 lbs)
ConnectivityUSB 2.0
Operating Power12V / 1Amp
An ED65 refractor example with the FocusCube v2, Falcon Rotator and Scops OAG