D70mm refractive achromatic objective lens devised for DIY astronomical telescopes.
Available in three focal lengths: 400mm, 280mm, and 330mm, catering to various observational needs.
Coated with adhesive blue, green, or standard film for enhanced light transmission and image clarity.
Easy assembly: ensure the thinner side of the lens faces the object and the thicker side faces the lens tube.
Each package contains 1 piece, making it a perfect addition for telescope enthusiasts and DIY projects.
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