ZWO Spiral Focuser 1.25″

ZWO Spiral Focuser 1.25 inch: micron-precision without motor

This helical focuser is made for places where space is limited but precision counts: the guide port of an off-axis guider or a compact camera setup. The helical mechanism provides 6 mm of travel with a 0.1 mm fine adjustment, and the attached accessory does not rotate during focusing.

This non-rotating design is essential for guides and sensors: the orientation is maintained while you refine the focus. A locking screw secures the found position, so nothing shifts during the session.

Features

• 6 mm slag met 0.1 mm fijninstelling
• Non-rotating: orientation of camera or prism is maintained
• The clamping screw secures the focus position
• Compact enough for OAG guide ports

Compatibility

Telescope side: female T2 (M42 x 0.75). Output side: 1.25-inch barrel plus male T2. This makes it suitable for eyepieces, planetary cameras, and guiding cameras such as the ASI Mini series.

Specifications

The precision screw in the guide chain of ZWOsmall, mechanical, and indispensable in the right place.