Description
● Spherical, optically true, well ground edges.
● Diameter – 50mm.
Other diameters and focal lengths are available upon request.
20-201 (CONVEX LENS)
| CODE | FOCAL LENGTH | |||||
| 01 | A | B | C | D | E | F |
| 5cm | 10cm | 15cm | 20cm | 25cm | 30cm | |
20-202 (CONCAVE LENS)
| CODE | FOCAL LENGTH | |||||
| 01 | A | B | C | D | E | F |
| 5cm | 10cm | 15cm | 20cm | 25cm | 30cm | |
