Bi-aspheric plastic lens Ø 57 mm - 20 diopters round made of PMMA (Plexiglas®) injection-moulded

These lenses are characterised by a distortion-free image quality right to the edge. However, as they are lightweight lenses made of plastic, there is a risk of scratching.

Size: Ø 57.0 mm
Optical power: 20 diopters
Focal length: 50 mm
Rim thickness: 3.2 mm
Centre thickness: 16.2 mm