ZWO 1.25" Non-Rotating Helical Focuser with Female M42 T/T2 Threads

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- Precision helical microfocuser for use with an off-axis guider (sold separately) 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
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.
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
Other Information
- Country of Manufacture: China
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.
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
- Precision helical microfocuser for use with an off-axis guider (sold separately) 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
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.
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
Other Information
- Country of Manufacture: China
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|---|---|
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ZWO 1.25" Non-Rotating Helical Focuser with Female M42 T/T2 Threads


















