CNC-Machined in the USA
Event Horizon EVRP — Pegasus FocusCube 3 Crayford Focuser, Newtonian Base
A precision Crayford focuser that mounts your Pegasus FocusCube 3 focus motor and replaces the stock focuser on your Newtonian. We supply the focuser mechanics — you supply your own Pegasus motor — for true zero-backlash, zero-image-shift autofocus.
Bolting a Pegasus FocusCube onto a stock Newtonian focuser just motorizes the backlash and image shift — they’re still there. The EVRP fixes that: it gives you a true friction-drive Crayford base, and your motor mounts to it with screws using the couplers already included with your Pegasus kit. Now your autofocus routine drives a mechanism that actually holds focus.
Specifications
- ✓ Control focus from Pegasus software and ASCOM interfaces
- ✓ Autofocus with NINA, Sequence Generator Pro, and other popular software
- ✓ Zero image shift, zero backlash — CNC-machined friction-drive Crayford design
- ✓ Drawtube length of travel is configurable at the time of order (see drop-down menu)
- ✓ Compatible with Newtonian telescope tubes 7.25″ in diameter or larger, as well as flat focuser boards
- ✓ Load capacity 8 lb · focuser weight 1.4 lb
- ✓ Individually assembled and tested in our own facility — 100% made in the USA
You provide the motor. The EVRP ships as the focuser mechanics with the Pegasus FocusCube 3 mounting adaptation. It does not include the Pegasus FocusCube 3 motor itself.
Fitting note: Fitting a new focuser onto an existing Newtonian takes careful consideration and engineering — it is not a one-size-fits-all swap. Many publicly available tools and active community forums can help you plan the change.
Fitting note: Fitting a new focuser onto an existing Newtonian takes careful consideration and engineering — it is not a one-size-fits-all swap. Many publicly available tools and active community forums can help you plan the change.
Optional Optical Adapters
- JMI Combination 1.25″ Eyepiece & T-Thread Adapter (ADPT2-1.25T) — for camera use. Mounts a CCD or other T-threaded camera into a 2″ drawtube, and doubles as a 1.25″ adapter. Uses a compression ring and includes 48 mm filter threads on the focuser end.
- Farpoint 2″ Focuser to 1.25″ Eyepiece Adapter (FAV100) — a visual 2″-to-1.25″ eyepiece adapter with a non-marring compression ring. Threaded for both 2″ and 1.25″ filters, with a stop to keep long eyepieces from damaging filters.
New to Crayford focusers? Read the Event Horizon Focusers guide. Have a Schmidt-Cassegrain instead? See our SCT Focusers.
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