| ELEMENT LEFT SURFACE RADIUS | 1.422 INCHES |
| ELEMENT RIGHT SURFACE RADIUS | 1.236 INCHES |
| ABBE CONSTANT | 64.500 AND 33.800 |
| AXIAL THICKNESS | 0.157 INCHES NOMINAL AND 0.079 INCHES NOMINAL |
| BACK FOCAL LENGTH | 2.532 INCHES |
| COMPOUND LENS EDGE THICKNESS | 0.170 INCHES NOMINAL |
| COMPOUND LENS OVERALL AXIAL THICKNESS | 0.236 INCHES NOMINAL |
| COMPOUND LENS STYLE | DOUBLET |
| DIAMETER | 0.748 INCHES NOMINAL |
| EQUIVALENT FOCAL LENGTH | 2.665 INCHES |
| INDIVIDUAL LENS STYLE | DOUBLE CONVEX AND MENISCUS DIVERGING |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-G-174, CLASS 1, GRADE C MIL SPEC SINGLE MATERIAL RESPONSE |
| MATERIAL | GLASS OPTICAL |
| REFRACTION INDEX | 1.5170 NOMINAL AND 1.6490 NOMINAL |