Features:
* Precision M54×0.75 thread (54 mm/2.13 in diameter, 0.75 mm/0.03 in pitch) provides a tight seal for the telescope for port; as an Astronomical Telescope Cover, it protects against , moisture, and scratches during storage.
* CNC machined and anodized aluminum alloy, rust-free, and with a tight fit; as a Camera Lens Protective Cap, it is reliable even when photography outdoors.
* M54×0.75 compatibility: fits male threads on focusing mounts, field curvature correction lenses, filter wheels, camera adapters, etc.; protects openings during device disassembly.
* Easy to screw on; secure threads prevent loosening during transport and against sand, , and moisture.
* Suitable for: observatories, travel, and home storage; protects optical components during setup/disassembly and long-term storage.

Specifications:
* Product Name: Astronomical Telescope Cover Camera Lens Protective Cap
* Material: Metal
* Size: approx.M54×0.75
*Color: red black
*Weight: about 25g

Package Content:
1 x Cover Cap