Detail Specifications
Axial Thickness:
0.080 inches and 0.649 inches
Compound Lensaxial Thickness:
0.729 inches
Compound Lens Edge Thickness:
0.502 inches
Equivalent Focal Length:
7.871 inches
Back Focal Length:
8.333 inches
Refraction Index:
1.6170 and 1.5170
Abbe Constant:
36.600 and 64.500
Compound Lens Style:
Doublet
Individual Lens Style:
Double concave and double convex
Element Left Surface Radius:
-7.616 inches and 2.148 inches
Element Right Surface Radius:
-2.148 inches and 2.148 inches
Material:
Glass, optical, jan-g-174, grade c
Material:
Glass, optical, jan-g-174, grade c
Fsc Application Data:
Telescope, integrated with fire control
Item Name:
Objective Lens
Manufacturer Part Numbers
No other part numbers with same form, fit, and function found.