TS-Optics 3" rack and pinion focuser for up to 6kg payload - 110mm focal range
The Telescope Service Alternative to the Starlight Feather Touch FTF 3025 Refractor Focuser
The TS 3" rack and pinion focuser has the connection thread M117x1 on the telescope side. It therefore fits directly on Ritchey Chretien telescopes with the M117 connection. All common correctors can be attached to the camera side through intermediate threads.
♦ 110mm adjustment range of extension tube
♦ Storage without changes and sensitive adjustment even under maximum load
♦ Storage and adjustment are separated from each other
♦ Adjustment by helical gear
♦ 1:10 micro reduction for sensitive focus in astrophotography
♦ Connection thread M68x1, M78 (internal) and connection thread M74x1 (external) and 2" or 1.25" reduction
€439.00
(VAT incl.)
Reference:
TSFOCR30
Teleskop-Service has been supplying and producing telescopes for amateur astronomers and astrophotographers for years. Our goal is to provide these telescopes with first class focusers at a reasonable price.
We are pleased to be able to offer you a top of the line focuser at a top class price that will also meet demanding astrophotographic tasks. The focuser is ideal for retrofitting existing telescopes, such as APO or RC refractor telescopes. But self-builders also like to use this extract.
The connection or adaptation to the telescope
The TS 3" R&P focuser is supplied with a connection adapter that has an internal thread M117x1. The adapter allows 360° rotation. So you only need a transition adapter to the internal thread M117.
If you remove the plug adapter, there is a plug connection with a diameter of 105 mm for individual adaptations.
The advantage: storage of the extension tube and adjustment are decoupled:
The draw tube is precision mounted. Unlike Crayford ball-bearing focusers, the focuser tube does not yield even under maximum load. Extension tube adjustment is achieved through a worm gear.
On the one hand, the advantage is a very sensitive fit, even under maximum load, combined with the best possible grip. Even heavy cameras hold up well and field sharpness is maintained.
Especificaciones:
| Connecting thread - camera side: | M78x1 female (10 mm deep), M74x1 male, M68x1 female |
| Connection barrel: | 2" and 1 1/4" with adapter |
| Connection to telescope: | 105 mm plug connection, with rotation adapter M117x1 (12 mm deep) female thread |
| Length of the 2" adaptor: | 18 mm |
| Shortest overall length: | 81 mm from M117 threaded connection to M78 internal thread / 91 mm to M68x1 internal or M74x1 external thread / 110 mm to 2" receptacle |
| Focus travel: | 110 mm |
| Shaft for motor focuser: | 34 mm diameter |
| Reduction: | Micro transmission |
| Payload: | 6 kg |
| Weight: | 1.64 kg incl. rotating adapter |
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