- 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.