Leica continuously makes top of the line binoculars and these are no exception. Select features regarding optical performance, construction, and design features are listed below.
Optical Performance
Removable eyepieces w/two click stops for eye/sunglasses
Roof prism with phase correcting coating P40 and HighLux-System HLS for detailed imaging
All 9 lens elements are HDC multicoated for enhanced color rendition, clarity, sharpness
Twilight Factor of 18.3 for light sensitivity in difficult viewing conditions
AquaDura coating on outer lenses (not on close focus lens) for clear visibility during bad weather conditions
Design and Construction
Automatic diopter compensation (ADC)
Filled with nitrogen for all-weather reliability
Sealed and watertight - submersible to 16.5' / 5.0 m
Textured surfaces provide a secure, comfortable grip at all times
Ergonomically designed for easy and comfortable handling
Large center focusing wheel with internal focusing with a short focusing range of just over one rotation for speed and precision
