The Plossl eyepiece (PL) image quality is very good, the mirror distance is large.Suitable for high magnification and projection eyepieces. It is now commonly used on telescopes.It is used to observe landscapes and astronomical observations of lunar surfaces, planets, nebulae, star clusters, and diffuse nebulae. It has high brightness and large field of view, and is very comfortable to observe. Metal body, full-surface multi-layer coating, high-quality optical performance.