| ELEMENT LEFT SURFACE RADIUS | -1.202 INCHES AND 0.885 INCHES |
| ELEMENT RIGHT SURFACE RADIUS | -1.202 INCHES AND 8.841 INCHES |
| ABBE CONSTANT | 29.300 AND 64.500 |
| AXIAL THICKNESS | 0.380 INCHES NOMINAL AND 0.090 INCHES NOMINAL |
| BACK FOCAL LENGTH | 2.231 INCHES |
| COMPOUND LENS EDGE THICKNESS | 0.341 INCHES NOMINAL |
| COMPOUND LENS OVERALL AXIAL THICKNESS | 0.450 INCHES MINIMUM AND 0.490 INCHES MAXIMUM |
| COMPOUND LENS STYLE | DOUBLET |
| DIAMETER | 0.965 INCHES MINIMUM AND 0.968 INCHES MAXIMUM |
| EQUIVALENT FOCAL LENGTH | 2.686 INCHES |
| FSC APPLICATION DATA | RANGEFINDER M17C |
| INDIVIDUAL LENS STYLE | DOUBLE CONVEX AND DOUBLE CONCAVE |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-G-174, CLASS 1, GRADE C MIL SPEC SINGLE MATERIAL RESPONSE |
| MATERIAL | GLASS OPTICAL |
| REFRACTION INDEX | 1.7200 NOMINAL AND 1.5170 NOMINAL |