C.1 Specifications
| Magnification | 8x | 10x | 12x |
| Obj. lens diameter | 42mm |
42mm
|
42mm
|
| Exit pupil | 5.3mm | 4.2mm | 3.5mm |
|
Field of View (FOV)
|
6.5°
|
6°
|
5°
|
| Apparent FOV (FOV x Power) |
52°
|
60°
|
60°
|
| Field of view (ft/1000 yds) | 341 | 314 | 262 |
| Brightness | 27.6 | 17.6 | 12.3 |
| Light transmission (%) | 90.00% | 89.00% | 89.00% |
| Twilight factor | 18.3 | 20.5 | 22.4 |
| Multi Position Eyecups Y/N | Yes |
Yes
|
Yes
|
| Eye relief | 19.5mm | 16mm | 15mm |
| Near focus | 5.9ft |
5.9ft
|
5.9ft
|
| Eye width adjustment | 58~72mm |
58~72mm
|
58~72mm
|
| Dimension WxHxD | 5x5.7x2.1 |
5x5.7x2.1
|
5x5.7x2.1
|
| Weight | 24 oz | 24.5 oz | 24.5 oz |
| Lens constr. obj. | 3 groups 4 elements (ED) |
3 groups 4 elements (ED)
|
3 groups 4 elements (ED)
|
| Lens constr. ocular | 3 groups 4 elements | 3 groups 4 elements | 3 groups 5 elements |
| Prisms type | Schmidt-Pechan |
Schmidt-Pechan
|
Schmidt-Pechan
|
| Prism reflective coating type | Dielectric coating |
Dielectric coating
|
Dielectric coating
|
| Phase Correction Coating | Yes | Yes | Yes |
| ED glass | Yes | Yes | Yes |
| Lens coating | Scratch and Oil Resistant |
Scratch and Oil Resistant
|
Scratch and Oil Resistant
|
| Diopter correction (dpt) | +/-3 |
+/-3
|
+/-4
|
| Pressure tested to what pressure | 1m for 30 min. (IPX7) |
1m for 30 min. (IPX7))
|
1m for 30 min. (IPX7)
|
| Storage temperature |
-40°~158°F
|
-40°~158°F
|
-40°~158°F
|
| Functional temperature |
-13°~140°F
|
-13°~140°F
|
-13°~140°F
|
| Frame material | Polymer |
Polymer
|
Polymer
|
| Internal gas purged | Nitrogen |
Nitrogen
|
Nitrogen
|
| Tripod Adaptable Y/N | Yes | Yes | Yes |
| Origin | Japanese and Chinese components assembled in the Philippines |
Japanese and Chinese components assembled in the Philippines
|
Japanese and Chinese components assembled in the Philippines
|