Review on 🔍 Enhance Your Optical Experience with Eisco Piece Premium Diameter by Paul Dobson

The lenses were supplied as described, a small box containing 3 double convex and 3 double concave lenses each packed in a separate and labeled envelope. The lenses are highly polished to reduce aberrations to a minimum. However, short focal length lenses are better suited for classroom demonstrations. I would prefer 10, 20, 30 mm instead of 20, 30, 50 mm.