Magnification | 6x | 8x | 10x |
Obj. lens diameter | 30mm | | |
Exit pupil | 5mm | 3.75mm | 3mm |
| | | |
Apparent FOV (FOV x Power) | | | |
Field of view (ft/1000 yds) | 446 | 430 | 341 |
Brightness | 25 | 14.1 | 9 |
Light transmission (%) | 94.60% | 95.20% | 94.60% |
Twilight factor | 13.4 | 15.5 | 17.3 |
Multi Position Eyecups Y/N | Yes | | |
Eye relief | 18.3mm | 15.1mm | 15.3mm |
Near focus | 8.2ft | 8.2ft | 8.2ft |
Eye width adjustment | 56~73mm | | |
Dimension WxHxD | 4.7x4.6x1.6 | | |
Weight | 16.1 oz | 16.6 oz | 16.8 oz |
Lens constr. obj. | 3 groups 4 elements (ED) | | |
Lens constr. ocular | 4 groups 5 elements | 4 groups 5 elements | 4 groups 5 elements |
Prisms type | Schmidt-Pechan | | |
Prism reflective coating type | Dielectric coating | | |
Phase Correction Coating | Yes | Yes | Yes |
ED glass | Yes | Yes | Yes |
Lens coating | Scratch and Oil Resistant | | |
Diopter correction (dpt) | +/-2 | | |
Pressure tested to what pressure | 1m for 30 min. (IPX7) | | |
Storage temperature | | | |
Functional temperature | | | |
Frame material | Polymer | | |
Internal gas purged | Nitrogen | | |
Tripod Adaptable Y/N | Yes | Yes | Yes |
Origin | Japanese components assembled in the US | | |