B1™ ED/HD Binoculars


The B1™ binocular uses the finest ED (Extra-Low Dispersion) glass, and has amazing HD (High-Definition) performance. You have purchased a premium binocular for a lifetime of reliable use.

All lenses are fully multi-coated with our proprietary Diamond Bright coating for maximum glare reduction and light transmission, giving the viewer a satisfying, color-saturated view and exquisite optics suitable for long term, comfortable glassing of objects near and far. The BAK-4 internal roof prisms are treated with cutting-edge phase-corrected dialectric coatings that limit dispersion and help minimize diffraction. The generous eye relief means enjoyable viewing for eyeglass wearers, and the remarkable close focus capabilities mean that a backyard bird or butterfly can be as sharp and in focus as a distant animal or galaxy. The magnesium body shaves weight and adds superior rigidity, while allowing a pleasing and ergonomic grip for any sized hands. 

10 x 5010 x 428 x 42
Objective: 50 mm 42 mm 42 mm
Eye Relief: 18 mm 17 mm 18 mm
FOV (ft/1,000 yds): 324 330 408
Prism Coating: Phase Corrected Dielectric
Relative Brightness: 25 17.6 17.6
Twilight Index: 22.4 20.5 18.3
Min. Focus Distance: 9 ft 6 ft 6 ft
Waterproof: Yes
Weight: 31 oz 24.7 oz 24.7 oz
Length: 6.25 in 5.35 in 5.35 in
IPD: 58-76 mm