TS-Optics 3 inch RAP focuser with ball bearings for RC telescopes - M90x1 connection

TS-Optics 3 inch RAP focuser with ball bearings for RC telescopes - M90x1 connection

Stable 2" focuser with rack and pinion adjustment, speed reduction and roller bearings for RC and Cassegrain telescopes with M117x1 thread on the tube
  • Telescope connection: female M117x1 thread with 360° rotation
  • Can also be attached to refractors via special adapter
  • Connection on the eyepiece side is 2" and 1.25"
  • M82x1 male thread, M77x1 female thread, M74x1 male thread and M69x1 female thread for screw adaptations
  • Drawtube travel is 50 mm
  • Bearing via stainless steel rail with ball bearings
  • Adjustment via toothed rack - rack-and-pinion principle
  • Suitable for EAF motorized focus without additional adapter
 
Manufacturer : TS Optics
SKU : TSO-TSFOCRP3RC
Price: 425.00 € incl tax 19% (Germany)
Estimated delivery time : 4-8 weeks
Product description
The focuser fits directly to the M117x1 thread of the larger RC and Cassegrain telescopes from 10? aperture. It holds accessories up to 6 kg and, thanks to the combination of roller bearings and toothed drive, allows clean adjustment without tilting, even under maximum load. The base on the adjustment side is flat and equipped with two M4 female threads, so that a motorized focuser such as the EAF from ZWO can be mounted without an auxiliary adapter.

Connection to the telescope:

On the telescope side, the focuser has an M117x1 internal thread with a knurled union nut. The thread depth is 8 mm. The focuser can also be connected to other telescopes such as refractors using adapters to M117.

Connection of camera-side accessories:

Many threads are available for screw adaptations. In addition, we also offer transition adapters for the threads on the focuser, for example to M68x1.

Scope of Delivery:
  • Focuser
  • Adapter with M77x1 and M74x1 male thread and M69x1 female thread
  • 2" and 1.25" adapter
  • 1.25" dust cap
Products specifications
Focuser type 3" Rack and Pinion Focuser
Connection to telescope M 117 Thread
material metal
Reduction yes
Focuser tube outer diameter 92 mm incl. toothed rack and bearing
Unobstructed inner diameter 75.5 mm with anti-reflective thread
Draw Tube Travel 50mm
Connecting thread M82x1, M77x1, M74x1, M69x1, 2"/1.25"