| ELEMENT LEFT SURFACE RADIUS | -12.110 INCHES AND 13.866 INCHES |
| ELEMENT RIGHT SURFACE RADIUS | -12.110 INCHES AND -108.440 INCHES |
| ABBE CONSTANT | 64.500 AND 36.600 |
| AXIAL THICKNESS | 0.236 INCHES NOMINAL AND 0.177 INCHES NOMINAL |
| BACK FOCAL LENGTH | 28.547 INCHES |
| COMPOUND LENS EDGE THICKNESS | 0.383 INCHES NOMINAL |
| COMPOUND LENS OVERALL AXIAL THICKNESS | 0.413 INCHES NOMINAL |
| COMPOUND LENS STYLE | DOUBLET |
| DIAMETER | 1.693 INCHES NOMINAL |
| EQUIVALENT FOCAL LENGTH | 28.807 INCHES |
| FRONT FOCAL LENGTH | 28.799 INCHES |
| FSC APPLICATION DATA | FIRE CONTROL,RANGE FINDER MK 46,MOD 0 |
| INDIVIDUAL LENS STYLE | DOUBLE CONVEX AND MENISCUS DIVERGING |
| MATERIAL DOCUMENT AND CLASSIFICATION | JAN-G-174, GRADE C MIL SPEC SINGLE MATERIAL RESPONSE |
| MATERIAL | GLASS OPTICAL |
| REFRACTION INDEX | 1.5170 NOMINAL AND 1.6170 NOMINAL |