| ELEMENT LEFT SURFACE RADIUS | 1.300 INCHES |
| ELEMENT RIGHT SURFACE RADIUS | 1.259 INCHES AND -1.172 INCHES |
| ABBE CONSTANT | 32.200 AND 64.500 |
| AXIAL THICKNESS | 0.098 INCHES NOMINAL AND 0.453 INCHES NOMINAL |
| BACK FOCAL LENGTH | 3.106 INCHES |
| COMPOUND LENS EDGE THICKNESS | 0.407 INCHES NOMINAL |
| COMPOUND LENS OVERALL AXIAL THICKNESS | 0.551 INCHES NOMINAL |
| COMPOUND LENS STYLE | DOUBLET |
| DIAMETER | 1.124 INCHES NOMINAL |
| EQUIVALENT FOCAL LENGTH | 2.995 INCHES |
| FSC APPLICATION DATA | TELESCOPE M76C,INTEGRATED WITH FIRE CONTROL |
| INDIVIDUAL LENS STYLE | PLANO-CONCAVE AND DOUBLE CONVEX |
| MATERIAL DOCUMENT AND CLASSIFICATION | JAN-G-174, GRADE C MIL SPEC SINGLE MATERIAL RESPONSE |
| MATERIAL | GLASS OPTICAL |
| REFRACTION INDEX | 1.6720 NOMINAL AND 1.5170 NOMINAL |