TS-Optics 3 inch RAP Newtonian focuser with tilting capability and base for D>=300mm tubes.

TS-Optics 3 inch RAP Newtonian focuser with tilting capability and base for D>=300mm tubes.

The rack and pinion focuser is suitable for do-it-yourself construction or improvement of a 10" Newtonian and also accepts correctors with 3" diameter.

  • Suitable for telescope tubes with 230mm to 250mm diameter
  • Including 360° rotation and tilting possibility
  • 2" connection and auxiliary thread M82x1 (female) for adapting large correctors for astrophotography
  • Micro-reduction for precise focusing
  • The bearing of the extension tube is decoupled from the adjustment via gear drive (rack-and-pinion)
Manufacturer : TS Optics
SKU : TSO-TSFOCN3-300
Price: 914.00 € incl tax 19% (Germany)
Estimated delivery time : 1-4 days
Product description
The focuser is intended for self-building or improving existing Newtonian telescopes. Astrophotography is the main focus of this focuser. Large correctors can be screwed on directly via the M82x1 auxiliary thread. 

Besides the 360° rotation, a special feature is the built-in tilting. This allows a precise tilting of the focuser in order to perfectly adapt the image field to the camera sensor. Especially large sensors with high resolution can thus deliver their full performance.
Products specifications
Focuser type 3" Rack and Pinion Focuser
Reduction 1 : 10 Micro Focusing
Plug connection 2 Inch
Connection to camera M82x1 female and 2"
Draw Tube Travel 39mm
Suitable for Newtonian telescopes with a tube diameter of 300 mm or more