Specifications for Athlon Optics 8.5x42 Cronus Waterproof Binocular:

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Power:	8.5x
Objective Lens Diameter:	42 mm
Eye Relief:	22 mm
Field of View Angular:	7.6
Field of View Feet @1000 Yards:	399 ft
Field of View Meters @1000 Meters:	129 m
Close Focus:	2 m /6.6 ft
Interpupillary Distance:	56 mm-73 mm
Weight:	33 oz

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Features of Athlon Optics 8.5x42 Cronus Waterproof Binocular:

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- E2ES System- Edge 2 Edge Sharpness system: E2ES System is a field flattening system that produces sharper, clearer images all the way from one lens edge to the other
- ED Glass- High definition glass: ED glass gives you an image with little or no chromatic fringe so the final result brings a clearer and sharper image to your eyes
- ESP Dielectric Coating- Enhanced Spectral Prism Dielectric Coating: ESP Dielectric Coating is a multi layer prism coating that reflects over 99% of the light to your eyes bringing you a clear, bright image that displays accurate color reproduction.
- Lightweight Magnesium Chassis: Magnesium chassis give you the strength of a metal chassis while reducing the weight as much as 35%
- XPL Coating- Xtra Protective Layer coating: XPL Coating gives you an extra protection on the exterior lenses from dirt, oil and scratches
- Phase Corrected prisms: Phase corrected prisms produce images that have better contrast, a higher resolution and better color reproduction
- BaK4 prisms: Bak-4 glass prisms reflect more light to your eyes which will give you brighter and sharper image.
- Advanced FMC: Advanced Fully Multi-Coated lenses gives you better light transmission to bring optimum brightness and true color across the entire light spectrum.
- Locking Diopter: Locking Diopter keeps the diopter adjustment knob from accidentally moving from the optimal setting
- Long Eye Relief: Long eye relief can be particularly important for eyeglass wearers because longer eye relief allows them to still see the entire field of view.
- Close Focus: Close focus is important for those who are nature observers and especially important if you are going to watch butterflies or insects
- Twist Up Eyecups: Twist up eyecups with intermediate stops allow you to set the eyecups to the ideal eye relief for you eyes
- Waterproof: Waterproof to protects the binocular in the harshest weather conditions or if accidentally submerged underwater
- Argon Purged: Argon purging gives you better waterproofing and thermal stability