RS4.2 Specifications
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RS4.2 MOA
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| Focal plane | First | ||
| Magnification range | 5x - 30x |
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| Obj. lens diameter | 56mm | ||
| Tube diameter |
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| Objective outer diameter |
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| Eyepiece outer diameter | 43.6mm | ||
| Overall length | 325mm / 12.79in | ||
| Weight (without battery) | 33.2oz / 941g | ||
| Internal adjustment range (MOA/MIL) | |||
| Travel Elevation | 120 MOA |
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35.5 MIL |
| Travel Windage | 50 MOA | 20 MIL | |
| Click value | 0.250 MOA | 0.1 MIL | |
| Adjustment per turret revolution | 25 MOA |
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10 MIL |
| Parallax adjustment | 15y - Infinity |
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| Exit pupil diameter | @5x: 8.9mm | @30x: 1.9mm | |
| Eye relief | @5x: 78-92mm | @30x: 86-92mm | |
| Field of view @ 100y | @5x: 23.3ft | @30x: 3.9ft | |
| Front/Rear mounting length | F: 61mm |
R: 42mm
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| Effective objective lens diameter | @5x: 44.5mm |
@30x: 56mm
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| Field of view | @5x: 4.46° |
@30x: 0.74°
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| Field of view, apparent |
@5x: 22°
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@30x: 22°
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| Diopter correction (dpt) | +/-3 |
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| Light transmission | 91.84% |
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| Twilight factor |
@5x: 16.73
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@30x: 40.98
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| Functional temperature |
-4°~158°F
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| Submersion tightness / waterproof rating | 3m depth |
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| Gas purged | Nitrogen |
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| Reticle construction | Etched Glass | ||
| Reticle options | MOA-2 / SHR-W |
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SHR-MIL / CFR-MIL |
| Illuminated reticle Y/N | Yes | Red/Green | |
| Origin | Made in Japan |