Achromatic objective lens devised for self-made refractive astronomical telescopes, ensuring clear and sharp images.
Features a 40mm actual diameter and a 205mm focal length, perfect for amateur astronomers seeking to enhance their telescope performance.
Coated with adhesive blue film for improved light transmission and reduced glare, enhancing your stargazing experience.
Easy to assemble with clear instructions; simply orient the thin side of the lens towards the scene for optimal viewing.
Compatible with various telescope models, making it a versatile addition to your astronomy toolkit.
Description
Assembly precautions: Assembly direction, the thin side of the lens towards the direction of the scene and the thick lens towards the direction of the mirror tube.
1 Pcs/Package