THE DEFINITIVE GUIDE TO OPTICAL GERMANIUM LENSES

Plano-convex Ge lenses are flat on just one facet and convex on the opposite. These lenses have a favourable focal duration, and tend to be used for gentle collimation.Assume modest and Feel detail after you get for any macro lens. These lenses can see Intense details at an in depth variety, so a little objects like Digital circuit elements and chi