1.20mm (0.8in) Focal Length for Comfortable Observation:This telescope eyepiece features a 20mm (0.8in) focal length, delivering superior optical performance that ensures comfortable, fatigue- observation—ideal for extended sessions without straining your eyes.
2.Full Multilayer Coating for Bright, Clear Views:Made with optical glass and a full multilayer coating, this astronomy eyepiece minimizes light reflection and maximizes light transmission, providing maximum brightness and high clarity to reveal fine details of celestial objects.
3.All-Metal Build & 1.25in Filter Compatibility:Constructed entirely of metal for durability, it has a bottom thread that fits adjustable 1.25in filters; it works with standard 1.25in interface telescopes (not included) and 1.25in filters (not included) to expand observation capabilities.
4.Large Field of View & High Brightness:Combining high brightness with a large field of view, the eyepiece offers a wide, expansive view of the night sky—making it easy to locate and observe celestial bodies while maintaining clear, vivid imagery.
5.Wide Compatibility for Astronomical Observation:Suitable for all astronomical telescopes with a 31.7mm (1.25in) interface, it's for observing diverse celestial objects, including the lunar surface, planets, nebulae, star clusters, and dispersing nebulae, meeting both beginner and enthusiast needs.