The BAK4 roof system prisms are phase-corrected to enhance image contrast and improve color performance.
All the optics are anti-reflection fully multicoated to make the most of light transmission to produce the brightest views possible.
An asymmetrical hinge design makes it possible for the binocular to be folded much smaller than normal center-hinged optics.
In order to cut weight, the housing is made from corrosion and impact-resistant fiberglass strengthened polycarbonate polymer.
The material is temperature-resistant allowing it to be useed in extreme conditions while decreasing expansion and contraction wide temperature swings can trigger which can make the optical elements move out of collimation over time.
Its optical tubes are nitrogen-filled and O-ring sealed so they are submersible to 1 meter , as well as fogproof in all weather conditions.