Description
Set of 3 optically worked plastic lenses 37 mm in diameter. Includes 2 double-convex lenses: 1 with 50-mm focal length, the other with 91-mm focal length. Also includes double-concave lens with 150-mm focal length.
Set of 3 optically worked plastic lenses 37 mm in diameter. Includes 2 double-convex lenses: 1 with 50-mm focal length, the other with 91-mm focal length. Also includes double-concave lens with 150-mm focal length.