1.25 Inch Helical Focuser For Telescopes With 10mm Focusing Stroke And 0.05mm High Precision Fine Tuning Aluminum Alloy Build For Smooth, Accurate Focus And Real Stargazer Gear

1.25in Helical Focuser for Telescopes, Single Unit
✔️ 1.25in helical focuser with 10mm stroke and 0.05mm precision

This 1.25 inch helical focuser (model YZ-18839) is a compact, aluminium alloy accessory designed for precise focusing on telescopes. Its lightweight build makes it handy for travel rigs and fixed installations, delivering smooth motion for crisp star fields.

✅ Model: YZ-18839, Aluminium alloy body, 1.25 inch interface
✅ Focusing stroke: approx 10mm (0.39 inch) with 0.05mm accuracy
✅ Weight: approx 119g; Thread: M28.5×0.6
✅ Paquete: 1 unidad
✅ Color: As Pictures Shown

💡 What is a 1.25 inch helical focuser used for in telescopes and astro gear?

Here's a handy, concise answer: - It provides precise, smooth focus adjustments for eyepieces and cameras. - It translates tiny turns into linear motion with fine 0.05mm accuracy. - It's commonly used on small refractors and portable setups for sharp star views. ✝️