⭐Contains a primary lens with an objective lens diameter of 150mm and a focal length of 750mm, and a secondary mirror with a short axis (short side diameter) of 35mm length. This is the core component of a set of mirrors.
⭐Uses: used in astronomical telescope accessories
⭐Features: The main mirror is a spherical mirror with aluminized surface and a protective film to prevent scratches on the main mirror under light touch. The workmanship is excellent.
