D70mm refractive objective lens devised for DIY astronomical telescope projects.
Compatible with multiple focal lengths: 300mm, 360mm, 400mm, 500mm, 700mm, 800mm, and 900mm.
Features a double separation structure for enhanced optical performance and clarity.
Single-sided blue film coating minimizes reflections and improves light transmission.
Ideal for astronomy enthusiasts and educational purposes, perfect for optical experiments and telescope building.
Description
Package includes: 1 (Note that the picture is for reference only, the scratches shown in the picture is not a lens defect, but only the impact of shooting angle and light.)