B1.2 Specifications
| Magnification | 8x | 10x |
| Obj. lens diameter | 42mm |
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| Exit pupil | 5.3mm | 4.2mm |
| Field of View (FOV) |
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| Apparent FOV (FOV x Power) |
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| Field of view (ft/1000 yds) | 420 | 347 |
| Brightness | 27.6 | 17.6 |
| Light transmission (%) | 93.95% | 94.50% |
| Twilight factor | 18.3 | 20.5 |
| Multi Position Eyecups Y/N | Yes |
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| Eye relief | 18.1mm | 17.8mm |
| Near focus | 4.9ft | 4.9ft |
| Eye width adjustment | 56~74mm |
56~74mm |
| Dimension WxHxD | 5.2x5.7x2.2 |
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| Weight | 26.808 oz | 26.808 oz |
| Lens constr. obj. | 3 groups 4 elements (ED) |
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| Lens constr. ocular | 4 groups 5 elements | 4 groups 6 elements |
| Prisms type | Wide Angle Schmidt-Pechan |
Schmidt-Pechan |
| Prism reflective coating type | Dielectric Coating |
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| Phase Correction Coating | Yes | Yes |
| ED glass | Yes | Yes |
| Lens coating | Scratch and Oil Resistant |
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| Diopter correction (dpt) | +/-3 |
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| Pressure tested to what pressure | 1m for 30 min. (IPX7) |
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| Storage temperature |
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| Functional temperature |
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| Frame material | Magnesium |
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| Internal gas purged | Nitrogen |
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| Tripod Adaptable Y/N | Yes | Yes |
| Origin | Japanese components assembled in the US |
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