TS Optics Focuser Crayford 2″

2″ Schmidt Cassegrain Focuser with 1:10 micro transmission and 1.25″ reducer

The problem: Focusing a Schmidt-Cassegrain is sometimes a problem becaus of the mirror shifting thus making sharp astro photos or critical observation tricky.
The solution: Our SC-Focuser solves this problem. Due to the Crayford friction principle, it is absolutely free from shifting and offers very good craftmanship. It supports accessories up to ca. 4 kg.

• The 1:10 micro transmission: Precise focusing is essential for successful astro photography. One revolution of the micro focuser knob moves the drawtube by 1.4mm. A twist of 10° gives only 0.038mm travel – that’s precise enough even for critical applications.
• The 360° rotation: Orientate your star diagonal or camera without loosenig locking screws. Search for a guide star with an Off-Axis-Guider without touching the camera. Just turn the knurled knob on the telescope side of the focuser and you can rotate the whole focuser with its accessories.
• The drawtube locking mechanism: It disengages the focusing mechanism and holds the drawtube in place firmly. This is essential for astro photography.
• Travel: The focuser’s travel is ca. 25mm – this is more than enough. Coarse focusing is done with the telescope’s main mirror – fine tuning is performed afterwards with the TS Crayford.
• 1.25″ Reducer: A reducer from 2 to 1.25″ with brass clamping ring and 2″ filter thread is included.

TS Optics is a brand of Teleskop-Service.