50MM achromatic objective lens devised for DIY astronomy telescopes, providing exceptional clarity and brightness for stargazing.
Versatile compatibility with various applications including binoculars, viewing glasses, and star finders, making it an essential accessory for astronomy enthusiasts.
Features multi-layer green film and glued blue film coatings to reduce glare and enhance light transmission for improved image .
Available in multiple diameters (51mm, 52mm, 57mm) and focal lengths (142mm to 684mm) to suit a variety of telescope setups and user preferences.
Easy to assemble with clear instructions; ensure correct orientation during installation for optimal performance and viewing experience.
وصف
Assembly precautions: assembly direction, the thin side of the lens towards the direction of the scene; The thick lens faces the direction of the tube.
Product diameter: 51mm / 52mm / 57mm; Product thickness: 9mm
Product name: astronomical telescope refraction objective lens
Product focal length: 182/183/142/300/400/500/684
Product coating: multi-layer green film/glued blue film
Scope of application: Suitable for DIY binoculars, viewing glasses, star finder and other scientific instruments.