| |  T1042 |  M1580rc |  T824 |
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| Item Number | 6506 | 2693 | 2003 |
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| Magnification | 10x | 15x | 8x |
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| Objective Lens Diameter | 42 mm (1.7 in.) | 80 mm (3.1 in.) | 24 mm (0.9 in.) |
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| Field of View at 1,000 yds. | 315 ft | 195 ft. | 342 ft. |
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| Field of View at 1,000 m. | 105 m (315 ft.) | 65 m (195 ft.) | 114 m (342 ft.) |
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| Ranging Distance | | | |
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| Focus System | Fast-Close-Focus™ | Individual Eyepiece Focussing | Fast-Close-Focus™ |
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| Optics System | High Definition Tactical Optic | Fully multi-coated | High Definition Tactical Optic |
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| Close Focus | 1.8 m (6 ft) | 60 m (197 ft) | 1.8 m (6 ft) |
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| Angle of View | | | |
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| Exit Pupil | 4.2 mm (0.17 in.) | 5.3 mm (0.21in.) | 3 mm (0.12 in.) |
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| Eye Relief | | | |
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| IP Distance | | | |
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| Diopter Range | | | |
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| Luminosity | 17.6 | 28.4 | 6.8 |
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| Twilight Factor | 20.5 | 34.6 | 16.1 |
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| Compass | | HD-Stabilized | |
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| Eyecups | Ergonomic | Cylindrical | Ergonomic |
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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 1 m (3 ft.) | Submersion to 5 m (16 ft.) | Submersion to 1 m (3 ft.) |
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| Weight | 742 g (26 oz.) | 1.96 kg (69.3 oz) | 350 g (12 oz.) |
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| Dimensions (HxWxL) | 16.7x 12.5x6.3 cm (6.6 x 4.9 x 2.5 in.) | 29.5x22.5x10.5 cm (11.6 x 8.9 x 4.1 | 12x10.5x 4.9 cm (4.8 x 4.2 x 1.9 in.) |
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| Neck Strap | Neoprene | Yes | Neoprene |
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| Neck Strap Attachment | ClicLoc® | Standard | ClicLoc® |
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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 | | Gear Bag |
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| Battery | | | |
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| Special Features | | Tripod Mount, HD Stabilized Compass, Mil Ranging Reticle, Military Specifications | |
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| Warranty | | | |
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