TS 3'' Rack and Pinion Focuser M117 (Long Version)
 TS 3'' Rack and Pinion Focuser M117 (Long Version)TS 3'' Rack and Pinion Focuser M117 (Long Version) 

TS 3" Rack and Pinion Focuser M117 (Long Version)

  (1 Review)
✓ 2 year warranty


2x in stock shipped 1-2 working days

About this product

Model:  ts_tsfocr30
Part Number:  TSFOCR30

The TS 3" Rack and Pinion Focuser is an alternative to the Starlight Feather Touch FTF 3025 focuser.

The TS 3 "Rack And Pinion focuser has an M117x1 connection thread on the telescope side that enables it to be installed on the StellaLyra 10" Ritchey Chretien and Classical Cassegrain telescopes.

With a 6kg maximum load bearing capacity this focuser is capable of comfortably handling heavy large format cameras/filters wheels/off axis guiders without flexure or slipping.

This focuser has over 4" of focus travel. If you plan to use a focal reducer with your RC/CC we would advise purchasing the Short Version of this focuser


  • Telescope Side Connection: M117x1
  • Camera Side Connection: M74 and M68 Internal and M74 external
  • Eyepiece Adaptors: 2" and 1.25"
  • Focus Travel: 109mm
  • Dual Speed reduction: 1:10
  • Maximum Load Capacity: 6kg
  • Drawtube Inside Diameter:76mm
  • Drawtube Outer Diametere: 84mm
  • Weight: 1.6kg

What's in the box

  • 3" Rack and Pinnion Focuser
  • M117 Telescope Side Connection Adapter with 360° rotation
  • 2" eyepiece adapter with compression ring
  • 2" to 1.25" eyepiece adapter with 2" filter thread

Customer reviews

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Great focuser
09 March 2022  | 

I bought the long travel version of this direct from TS a while back. It is excellent and the long focus range makes it able to cope with 3 different reducers and visual configs of my APM 107mm refractor. Really smooth and stable; takes a heavy load, and it saved me a packet over a Starlight.

By default it comes with a 117mm screw connector for on ota but it uses a more standard 105mm plug intermediate connector that can be adapted to various OTAs. You would want the different short travel version for RC scopes.


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