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  • TS-Optics 50,8mm Crayford focuser for Schmidt-Cassegrain TS-Optics 50,8mm Crayford focuser for Schmidt-Cassegrain

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TS-Optics 50,8mm Crayford focuser for Schmidt-Cassegrain

Product code: TSFOCSCM

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Quick Overview

Focusing a Schmidt-Cassegrain is sometimes a problem because of the mirror shifting thus making sharp astro photos or critical observation tricky. TS-Optics 50,8mm Crayford focuser for Schmidt-Cassegrain solves this problem: thanks to the Crayford friction principle, it is absolutely free from shifting and offers very good craftsmanship. It supports accessories up to 4 kg.

Availability: In stock

€179.00
22% tax incl
if you pay by bank transfer €173.63

Details

Technical specifications:

- 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.
- 360° rotation: orientate your star diagonal or camera without loosening 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.
- Drawtube locking mechanism: it disengages the focusing mechanism and holds the drawtube in place firmly. This is essential for astro photography.
- Travel: 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.
- Weight app. 700g
- Focuser height from SCT connection to 2" access: 90mm
- 1.25" reducer: one reducer from 2 to 1.25" with brass clamping ring and 2" filter thread is included.

Technical specifications

Type: Hybrid-Drive
For telescopes Schmidt-Cassegrain
Diameter 50,8mm with 31,8mm adapter
Micrometric focus knob Yes
Loading up to (Kg) 3
Travel (mm) 25
Thickness when closed (mm) 100

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