ZWO 1.25" Helical Focuser

The ZWO precision helical microfocuser is an ideal solution for easily adjusting image focus in a guide camera when using an off-axis guider for astrophotography. On one side, the focuser accepts a 1.25" guide camera with a locking nut and compression ring. The other side of the focuser connects to an off-axis guider with female T2 (M42x0.75) threads and a locking collar. The focuser does not rotate during focus adjustment, and it has a linear adjustment range of 6mm with 0.1mm accuracy. Minimum focuser height is 48.5mm. Camera and off-axis guider sold separately.

For use with ZWO OAG (Off-Axis Guider) and ASI Mini Series cameras. Can also be used for other applications when focusing is required.

• Precision helical microfocuser for use with an off-axis guider (optional) to focus image in a 1.25" guide camera (sold separately) during astrophotography
• Integrated 1.25" holder with compression ring for holding guide 1.25" camera; external male T2 (M42x0.75) thread on camera side and female T2 (M42x0.75) thread on opposite side
• Does not rotate during focusing; Includes adjustment range of 6mm and includes a scale for reproducible focus; Adjustment accuracy 0.1mm; Focus position can be locked with a knurled locking screw
• Minimum height 48.5mm

Features

• Aerospace aluminum alloy material
• Precision CNC machined
• Frosted and anodized housing
• Anti-skid brass screw

Specifications

• Inner diameter: 1.25" / 31.7mm
• Stroke: 6mm
• Adjustment accuracy: 0.1mm
• Top thread: M42x0.75 Male
• Bottom thread: M42x0.75 Female
• Minimum height: 48.5mm
• Weight: 3.1oz