THE DEFINITIVE GUIDE TO OPTICAL GERMANIUM LENSES

Plano-convex Ge lenses are flat on a person facet and convex on the opposite. These lenses Possess a constructive focal length, and are frequently utilized for gentle collimation.Consider modest and Imagine element any time you get to get a macro lens. These lenses can see extreme facts at an in depth assortment, so a little objects like Digital ci