| Diameter (mm) |
Focal Length (mm) |
Back Focal Length (mm) |
Radius of Curvature (mm) |
Center Thickness (mm) |
Edge Thickness (mm) |
|---|---|---|---|---|---|
| 6 | 10 | 9.2 | 9.9 | 2.4 | 1.5 |
| 6 | 12 | 11.2 | 12 | 2.3 | 1.5 |
| 9 | 12 | 10.7 | 11.7 | 3.6 | 1.0 |
| 9 | 20 | 19 | 20.1 | 2.8 | 1.8 |
| 1/2" | 15 | 13.4 | 14.6 | 4.7 | 1.8 |
| 1/2" | 20 | 18.7 | 19.9 | 3.9 | 1.8 |
| 1/2" | 25 | 23.8 | 25.2 | 3.4 | 1.8 |
| 1/2" | 30 | 28.9 | 30.4 | 3.1 | 1.8 |
| 1/2" | 40 | 39.1 | 40.7 | 2.8 | 1.8 |
| 1/2" | 50 | 49.1 | 51.1 | 2.6 | 1.8 |
| 1/2" | 100 | 99.3 | 102.6 | 2.2 | 1.8 |
| 25 | 25.4 | 17.7 | 13.1 | 11.7 | 2.5 |
| 25 | 50 | 46.6 | 25.8 | 5.3 | 2.07 |
| 25 | 75 | 72.2 | 38.6 | 4.1 | 2.02 |
| 25 | 100 | 97.6 | 51.5 | 3.6 | 2.06 |
| 25 | 200 | 198.1 | 103 | 2.8 | 2.04 |
| 1" | 25.4 | 17.6 | 13.1 | 11.7 | 1.8 |
| 1" | 30 | 24.2 | 15.5 | 8.6 | 2 |
| 1" | 35 | 30.1 | 18 | 7.2 | 2 |
| 1" | 40 | 35.7 | 20.6 | 6.4 | 2 |
| 1" | 50 | 46.3 | 25.8 | 5.3 | 2 |
| 1" | 60 | 56.7 | 30.9 | 4.7 | 2 |
| 1" | 75 | 72 | 38.6 | 4.1 | 2 |
| 1" | 100 | 97.3 | 51.5 | 3.6 | 2 |
| 1" | 125 | 122.4 | 64.4 | 3.3 | 2 |
| 1" | 150 | 147.5 | 77.3 | 3.1 | 2 |
| 1" | 175 | 172.5 | 90.1 | 2.9 | 2 |
| 1" | 200 | 197.5 | 103 | 2.8 | 2 |
| 1" | 250 | 247.4 | 128.8 | 2.6 | 2 |
| 1" | 300 | 297.3 | 154.5 | 2.5 | 2 |
| 1" | 400 | 397.1 | 206 | 2.4 | 2 |
| 1" | 500 | 496.8 | 257.5 | 2.3 | 2 |
| 1" | 750 | 746.1 | 386.3 | 2.2 | 2 |
| 1" | 1000 | 995.3 | 515.1 | 2.2 | 2 |
| 30 | 40 | 34 | 20.6 | 9 | 2.5 |
| 30 | 50 | 45 | 25.8 | 7.3 | 2.5 |
| 30 | 75 | 71.1 | 38.6 | 5.6 | 2.5 |
| 30 | 100 | 96.5 | 51.5 | 4.7 | 2.5 |
| 30 | 150 | 147.5 | 77.3 | 3.1 | 1.8 |
| 30 | 200 | 197.5 | 103 | 2.8 | 1.7 |
| 30 | 250 | 247.4 | 128.8 | 2.6 | 1.7 |
| 30 | 300 | 297.3 | 154.5 | 2.5 | 1.6 |
| 30 | 500 | 496.8 | 257.5 | 2.3 | 1.6 |
| 2" | 50 | 35 | 25.8 | 14.4 | 3 |
| 2" | 75 | 67 | 38.7 | 11.8 | 3 |
| 2" | 100 | 93.8 | 101.4 | 9.5 | 3 |
| 2" | 125 | 119.3 | 127.4 | 8.1 | 3 |
| 2" | 150 | 144.6 | 153.3 | 7.2 | 3 |
| 2" | 175 | 170.0 | 179.1 | 6.6 | 3 |
| 2" | 200 | 195 | 205 | 6.2 | 3 |
| 2" | 250 | 245.2 | 256.6 | 5.5 | 3 |
| 2" | 300 | 295.3 | 308.2 | 5.1 | 3 |
| 2" | 400 | 395.6 | 411.3 | 4.5 | 3 |
| 2" | 500 | 495.6 | 514.4 | 4.3 | 3 |
| 2" | 750 | 745.7 | 772 | 3.8 | 3 |
| 2" | 1000 | 995.8 | 1028.5 | 3.6 | 3 |
