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:
- Adapter with M77x1 and M74x1 male thread and M69x1 female thread
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" |
