Double Convex Spherical Lenses: +20D-5/Pk (copy)Double Convex Spherical Lenses: +2D -5/Pk
Double Convex Spherical Lenses
Diameter: 50mm
Focal Length: 50mm
Power: +20D
Refractive Index: 1.52 approx.
Diameter: 50mm
Made from float glass with optically worked faces and ground edges
Refractive index: approximately 1.52
Pack of 5