1. M42x0.75mm Thread Design: Engineered with a standard M42x0.75mm internal thread, our lens cover ensures a secure and stable connection to telescopes and camera mounts, enhancing overall sealing efficiency.
2. Effective Dust and Dampness Protection: This lens cover efficiently blocks dust, dirt, and dampness from entering the lens cone, significantly extending the life of your expensive optical systems while ensuring crystal clear images.
3. 1:1 Custom Fit Design: Meticulously crafted with a 1:1 mold, this lens cap tightly adheres to M42 threaded lenses, leaving no gaps and providing superior protection against contaminants.
4. Wide Compatibility with Various Equipment: Compatible with M42x0.75mm threaded telescopes, zoom eyepieces, and camera mounts, it works seamlessly with leading brands like fit for Sharpstar, fit for and fit for AstroTech.
5. Lightweight and Sturdy Construction: Made from high strength CNC machined aluminum alloy, this lens dust cover is both lightweight and robust, boasting wear and erosion resist, suitable for outdoor use and frequent handling.

Spec:
Item Type: M42x0.75mm Lens Dust Cover
Material: Aluminum Alloy
Thread Specification: M42x0.75mm
Thread Depth: Approx. 7mm / 0.28in

How to Use:
Install and use!

packing list:
1 x Dust Proof Cover