TS-Optics 2" Dual-Speed Crayford Focuser with SC thread connection

The 2" Crayford focuser allows backlash-free focusing with all telescopes from 8" that have a 2" SC thread, such as Celestron or Meade SC.

♦ Suitable for Celestron and Meade SC, EHD, ACF, ... telescopes with at least 8" aperture

♦ Thread at the telescope side: 2" SC thread with 360° rotation

♦ Connection on the eyepiece side: 2" and 1.25" receptacle with compression ring

♦ 25 mm travel

♦ 1:10 dual speed allows very accurate focusing


 

TS 2" Dual-Speed Crayford Focuser for Schmidt-Cassegrain telescopes

Adjusting the sharpness of Schmidt-Cassegrains is often a problem. The image shifts due to the tilting of the main mirror. In addition, the focus occasionally changes by itself. Thus optimal photos or successful observations often become a game of chance.

Our SC focuser solves this problem. Due to the Crayford friction principle, it is absolutely shifting-free and impresses with its excellent workmanship. The drag is adjustable so that accessories weighing up to 2 kg can be focused well.

360° rotation:
Move the camera or eyepiece into the correct orientation without loosening the clamps. Use an off-axis guidre to find the guide star without loosening the camera. This makes 360° rotation possible. Simply loosen the knurled screw at the front of the focuser and you can simply turn the complete focuser.

Clamping:
2" accessories are clamped using a brass compression ring. Of course, a high-quality reduction to 1.25" with thread for 2" filters is included in the price.

Travel:
The adjustment range is approx. 25 mm - that is more than enough. One adjusts roughly with the main mirror focusing, all other fine adjustments can then be made with the focuser.

Note:
The focuser only works on telescopes with at least 8" aperture, otherwise the focusing knob is too close to the thread to allow mounting.


 

Operating principle:	Crayford
Connection telescope side:	2" SC thread (inside)
Connection eyepiece side:	2" and 1.25" receptacle
Overall length:	90 mm with drawtube retracted
Adjustment range:	25 mm
Weight:	approx. 700 grams

In the box:
♦ TS Crayford focuser
♦ Reduction from 2" to 1.25" with 2" filter thread