| ELEMENT LEFT SURFACE RADIUS | 2.464 INCHES AND 0.869 INCHES |
| ELEMENT RIGHT SURFACE RADIUS | 0.869 INCHES AND -1.360 INCHES |
| ABBE CONSTANT | 33.800 AND 64.500 |
| AXIAL THICKNESS | 0.093 INCHES NOMINAL AND 0.346 INCHES NOMINAL |
| BACK FOCAL LENGTH | 2.320 INCHES |
| COMPOUND LENS EDGE THICKNESS | 0.281 INCHES NOMINAL |
| COMPOUND LENS OVERALL AXIAL THICKNESS | 0.439 INCHES NOMINAL |
| COMPOUND LENS STYLE | DOUBLET |
| DIAMETER | 1.063 INCHES NOMINAL |
| EQUIVALENT FOCAL LENGTH | 2.090 INCHES |
| FRONT FOCAL LENGTH | 1.881 INCHES |
| FSC APPLICATION DATA | TELESCOPE,ELBOW,M750,INTEGRATED WITH FIRE CONTROL EQUIP |
| INDIVIDUAL LENS STYLE | MENISCUS DIVERGING AND DOUBLE CONVEX |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-G-174, CLASS 1, GRADE C MIL SPEC SINGLE MATERIAL RESPONSE |
| MATERIAL | GLASS OPTICAL |
| REFRACTION INDEX | 1.6490 NOMINAL AND 1.5170 NOMINAL |