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Outfitted with extra low-dispersion/high transmission glass, multiple proprietary lens coatings, and phase-corrected roof prisms, the Sig Sauer 15x56 ZULU7 Binocular optical system produces bright and clear high-contrast images with true color fidelity across the entire field of view. Its powerful 15x magnification enables detailed observations at extreme distances, while the massive objectives draw in generous amounts of light to extend its capabilities beyond traditional terrestrial viewing to include wide-field astronomical use. The large objectives and long optical tubes translate into a heavier optic than most people are comfortable hand-holding, especially for long periods, so with this in mind Sig includes an adapter so this version of the ZULU7 can be easily mounted to a tripod.
Its open-bridge design helps to reduce weight without sacrificing strength or rigidity, and provides a large surface area for a secure and steady grip. Rubber armoring helps to give protection from drops and impacts while helping to provide a non-slip grip. Designed for durability, the lightweight polymer chassis is nitrogen-filled and O-ring sealed for fogproof performance and makes it submersible to 3.3 ft for up to 30 minutes. Twist-up eyecups provide a custom-fit eye relief for use with or without eye-wear.
56mm objective lenses
Compact BAK4 roof prisms
HDX extra low-dispersion, high-transmission glass elements corrects chromatic aberration for true color rendition and improved contrast
Fully multi-coated optics with a series of proprietary lens coatings
225' field of view at 1000 yards
Comfortable 15.5mm eye relief
3.7mm exit pupil
Proprietary Optical Coatings
SpectraCoat lens coatings:
Broadband, anti-reflection coatings
Reduce surface reflections across the entire visible spectrum
Improves overall light transmission for brighter images
Phase-correction silver prism coatings improve image brightness, contrast, and resolution
LenShield lens coatings repels water, oil, and other materials to keep lens clear and clean
LensArmor lens coatings resists scratches and abrasions
Use and Handling
Dual-hinge, open-bridge configuration:
Reduces overall weight without sacrificing strength or rigidity
Provides additional surface are for a more comfortable and secure grip
±4 right-eye dioptric correction
60-76mm interpupillary adjustment range
Twist-up eyecups for use with or without eyewear
Tripod mountable with included adapter
Lightweight and durable polymer chassis
StealthID rubber armoring
Slip-resistant to improve grip
Protects against drops and impacts
Reduces light reflection off housing
Nitrogen-filled for fogproof performance
O-ring sealed to IPX7-rating, submersible to 3.3' (1m) for up to 30 minutes