TS Optics 2″ Adapter for Sky-Watcher Newton Telescopes
Many newer Sky-Watcher telescopes come with a quality 2″ Crayford focuser - but the original eyepiece holder has a known weakness. Its clamping screws press directly against the barrel of the eyepiece or camera adapter. This causes scratches on the barrel and introduces tilt, which reduces sharpness across the field of view.
This adapter from TS Optics replaces the original holder and solves both problems at once.
Brass compression ring - no scratches, no tilt
The adapter for the Sky-Watcher Crayford focuser threads directly into the focuser's existing thread. On the eyepiece side, it grips the barrel with a brass compression ring. The ring applies even pressure around the full circumference, so there is no risk of scratching and no unwanted tilt.
The optical path length is just 12 mm. This keeps the adapter's impact on the available focus travel to an absolute minimum.
Why upgrade from the original holder?
- The original screws press on a single point and can scratch eyepiece barrels
- Uneven clamping causes tilt, which degrades sharpness at the edges of the field of view
- The brass compression ring distributes pressure evenly and holds the eyepiece securely
- Sharper images across the full field of view - especially noticeable with wide-angle eyepieces
- Compatible with eyepieces and camera adapters with a standard 2″ barrel
Technical specifications
| Parameter |
Value |
| Compatible focuser |
Sky-Watcher 2″ Crayford focuser |
| Barrel size |
2″ (50.8 mm) |
| Clamping mechanism |
Brass compression ring |
| Optical path length |
12 mm |
| Connection to focuser |
Threaded (screws directly into focuser thread) |
| Compatible telescopes |
Sky-Watcher Newton telescopes with 2″ Crayford focuser |
Who is this adapter for?
This adapter suits anyone who uses a Sky-Watcher Newton telescope with a 2″ Crayford focuser and wants to protect their eyepieces from scratches. It is also a practical upgrade for astrophotographers, where even a small amount of tilt can clearly affect image quality. The TS Optics compression ring adapter is a simple, low-cost improvement that delivers a noticeable difference in everyday use.
