1. High Accuracy Double Helical: The innovative double helical focusing mechanism allows for accurate adjustments, ensuring accurate focusing essential for astronomical observations and photography.
2. 10mm Focusing Stroke: With a 10mm focusing stroke, this focuser provides ample movement for fine tuning your telescope's focus, accommodating various eyepieces and imaging equipment.
3. Anti Rotation: The unique design ensures that the focusing mechanism moves linearly without rotation, preventing any misalignment or offset in eyepieces during adjustments.
4. All Metal Construction: Made from all metal material, this telescope double helical focuser is built to withstand the rigors of outdoor use, ensuring long term reliability.
5. Ideal for Astrophotography: Tailored for accurate observation and astrophotography, this focuser's design minimizes image shift, allowing for clear and stable images, ideal for catching celestial wonders.

Specification:
Item Type: Telescope Helical Focuser
Material: Aluminum Alloy
Big Thread Specification: M42x0.75mm
Length of Large Thread: 9mm / 0.35in (Note: T2 Has No Locking Design)
Small Thread Size: M31x0.5mm
Depth of Small Thread: 5mm / 0.2in (Applicable to Interfaces with a Depth of 4.5mm or Less)

How to Use:
Install and use.

packing list:
1 x Telescope Helical Focuser