Feature

●This round double concave optical glass lens is designed for physics and educational uses.
●It is approximately 2" (50mm) diameter and 16.5mm thick. Note, thickness varies as they are not designed to be consistent in that respect.
●Because of their educational use design, there may be minor imperfections that do not affect physical function.
●100mm Focal Length


Description

This round double concave optical glass lens is designed for physics and educational uses. It is approximately 2" (50mm) diameter and 16.5mm thick. Note, thickness varies as they are not designed to be consistent in that respect. Because of their educational use design, there may be minor imperfections that do not affect physical function. 100mm Focal Length Round double concave optical glass lens designed for physics and educational uses.