ZWO HF1.25 Aluminum Alloy Double Helix Focusing for OAG Guide Focusing Astronomical Accessory

ZWO HF1.25 Aluminum Alloy Double Helix Focusing for OAG Guide Focusing Astronomical Accessory

Specification:
- Inner diameter size: 1.25-inch (31.75mm)
- Range: 6mm
- Adjustment precision: 0.1mm
- Top: M42x0.75 eternal thread
- Bottom: M42x0.42 internal thread
- Material: Aviation aluminum alloy material, precision CNC machining, frosted and anodized treatment, anti slip brass screws.

Package Included:
- 1 x Helix Focusing