D40 achromatic objective lens devised for self-made refractive astronomical telescopes, enhancing your stargazing experience.
Features a 40mm actual diameter and 205mm focal length, providing clear and sharp images of objects.
Coated with adhesive blue film for optimal light transmission and reduced chromatic aberration, ensuring vibrant and accurate colors.
Easy to assemble: Place the thin side of the lens towards the scene and the thick side towards the mirror tube for correct orientation.
Includes 1 piece per package, perfect for DIY enthusiasts looking to upgrade their telescope optics with a reliable and efficient lens.
وصف
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