ThorLens Focal Lengths
(measured by autocollimation)
| Item # | Lens Type | f-nominal | f-1 | f-2 |
| BPX075 | Plano-convex | 12.5 cm | 12.1 cm | 12.6 cm |
| BPX085 | Plano-convex | 20.0 | 19.7 | 20.2 |
| BSX085 | Convex-convex | 20.0 | 19.9 | 20.0 |
| BSX080 | Convex-convex | 15.0 | 14.6 | 15.1 |
| BPX090 | Plano-convex | 25.0 | 24.7 | 25.0 |
| BPX085 | Plano-convex | 20.0 | 19.7 | 20.2 |