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 50 | 10 x 42 | 8 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 |