| |  M1580rc |  T1042r |  M1580 |
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| Item Number | 2693 | 6508 | |
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| Magnification | 15x | 10x | 15x |
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| Objective Lens Diameter | 80 mm (3.1 in.) | 42 mm (1.7 in.) | 80 mm (3.1 in.) |
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| Field of View at 1,000 yds. | 195 ft. | 315 ft | 195 ft. |
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| Field of View at 1,000 m. | 65 m (195 ft.) | 105 m (315 ft.) | 65 m (195 ft.) |
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| Ranging Distance | | | |
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| Focus System | Individual Eyepiece Focussing | Fast-Close-Focus™ | Individual Eyepiece Focussing |
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| Optics System | Fully multi-coated | High Definition Tactical Optic | Fully multi-coated |
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| Close Focus | 60 m (197 ft) | 1.8 m (6 ft) | 60 m (197 ft) |
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| Angle of View | | | |
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| Exit Pupil | 5.3 mm (0.21in.) | 4.2 mm (0.17 in.) | 5.3 mm (0.21in.) |
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| Eye Relief | | | |
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| IP Distance | | | |
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| Diopter Range | | | |
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| Luminosity | 28.4 | 17.6 | 28 |
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| Twilight Factor | 34.6 | 20.5 | 34.6 |
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| Compass | HD-Stabilized | | |
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| Eyecups | Cylindrical | Ergonomic | Cylindrical |
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| Rubber Armoring | NBR Long Life | NBR Long Life | NBR Long Life |
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| Nitrogen Filled | | | |
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| Waterproof | Submersion to 5 m (16 ft.) | Submersion to | Submersion to 5 m (16 ft.) |
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| Weight | 1.96 kg (69.3 oz) | 742 g (26 oz.) | 1.93 kg (68.1 oz) |
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| Dimensions (HxWxL) | 29.5x22.5x10.5 cm (11.6 x 8.9 x 4.1 | 16.7x12.5x6.4 cm (6.5x4.9x2.5 in.) | 29.5x22.5x9.5 cm (11.6 x 8.9 x 3.8 in.) |
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| Neck Strap | Yes | Neoprene | Standard |
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| Neck Strap Attachment | Standard | ClicLoc® | Standard |
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| Objective Cover | Yes | Yes | Yes |
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| Rain Protection Cap | Yes | Yes | Yes |
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| Carry Case | | Gear Bag | |
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| Battery | | | |
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| Special Features | Tripod Mount, HD Stabilized Compass, Mil Ranging Reticle, Military Specifications | SUMR Mill ranging reticle | Tripod Mount, Military Specifications |
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| Warranty | | | |
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