Magnification | 8x | 10x |
Obj. lens diameter | 42mm |
|
Exit pupil | 5.25mm | 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 | 362 |
Brightness | 27.6 | 17.6 |
Light transmission (%) | 93.95% | 94.50% |
Twilight factor | 18.1 | 17.8 |
Multi Position Eyecups Y/N | Yes |
|
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 |
|
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 |
Wide Angle Schmidt-Pechan
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Prism reflective coating type | Dielectric Coating |
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ED glass | Yes | Yes |
Lens coating | Scratch and Oil Resistant |
|
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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