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Combined with the Outdoorsmans' Compact Tripod, Pistol Grip Tripod Head, Binocular Adaptor, and Maven B.5 Binocular, the Backcountry Guide Bundle takes the guesswork out of optimizing your backcountry setup. Save up to $260 when you purchase this bundle. Not available for additional promotions.
Built on the foundation of the award-winning B.2 binocular, the large objective B.5 features a small/lighter magnesium frame and Abbe-Koenig prism and is paired with the very same fluorite glass that’s featured in our S Series Spotting Scopes. In both 15x and 18x options, the B.5 is our most powerful binocular and the fluorite glass is a step above ED glass of similar-sized optics. One of the most modern optical systems on the market, this purpose-built binocular is designed to extend your range for those who require increased magnification and the ability to discern detail during those critical low-light periods when covering big, open country. The B.5 is our recommended rig for those who are looking to step up their magnification range, but prefer a lightweight system when carrying a spotting scope is out of the question.
Includes:
-B.5 Binocular (neoprene neck strap, lens caps, and double-layered microfiber storage bag) (Starting at $1,450)
-Outdoorsmans Binocular Tall Adapter ($100)
-Outdoorsmans Tripod (compact / tall) ($600)
-Outdoorsmans Pistol Grip Tripod Head Kit ($390)
Learn more about the B.5 Binocular
Magnification | 10x | 12x | 15x | 18x |
Obj. lens diameter | 56mm | 56mm | 56mm | 56mm |
Exit pupil | 5.6mm | 4.7mm | 3.7mm | 3.1mm |
Field of View (FOV) | 6.5° | 5.5° | 4.5° | 3.7° |
Apparent FOV (FOV x Power) | 65° | 66° | 67.5° | 66.6° |
Field of view (ft/1000 yds) | 341 | 289 | 236 | 194 |
Brightness | 31.4 | 21.8 | 13.9 | 9.6 |
Light transmission (%) | 92.80% | 92.60% | 92.50% | 92.70% |
Twilight factor | 23.7 | 25.9 | 29 | 31.7 |
Multi Position Eyecups Y/N | Yes | Yes | Yes | Yes |
Eye relief | 19mm | 17.4mm | 17.8mm | 18mm |
Near focus | 9.8ft | 9.8ft | 9.8ft | 9.8ft |
Eye width adjustment | 56~75mm | 56~75mm | 56~75mm | 56~75mm |
Dimension WxHxD | 6.1x8.2x2.6 | 6.1x8.2x2.6 | 6.1x8.2x2.6 | 6.1x8.2x2.6 |
Weight | 45 oz | 45 oz | 45 oz | 45 oz |
Lens constr. obj. | 3 groups 4 elements | 3 groups 4 elements | 3 groups 4 elements | 3 groups 4 elements |
Lens constr. ocular | 4 groups 5 elements | 4 groups 6 elements | 4 groups 6 elements | 4 groups 6 elements |
Prisms type | Abbe-Koenig | Abbe-Koenig | Abbe-Koenig | Abbe-Koenig |
Prism reflective coating type | N/A | N/A | N/A | N/A |
Phase Correction Coating | Yes | Yes | Yes | Yes |
ED glass | Fluorite | Fluorite | Fluorite | Fluorite |
Lens coating | Scratch and Oil Resistant | Scratch and Oil Resistant | Scratch and Oil Resistant | Scratch and Oil Resistant |
Diopter correction (dpt) | more than +/-2 | more than +/-2 | more than +/-2 | more than +/-2 |
Pressure tested to what pressure | 1m for 30 min. (IPX7) | 1m for 30 min. (IPX7) | 1m for 30 min. (IPX7) | 1m for 30 min. (IPX7) |
Storage temperature | -40°~158°F | -40°~158°F | -40°~158°F | -40°~158°F |
Functional temperature | -13°~140°F | -13°~140°F | -13°~140°F | -13°~140°F |
Frame material | Magnesium | Magnesium | Magnesium | Magnesium |
Internal gas purged | Nitrogen | Nitrogen | Nitrogen | Nitrogen |
Tripod Adaptable Y/N | Yes | Yes | Yes | Yes |
Origin | Japanese components assembled in the US | Japanese components assembled in the US | Japanese components assembled in the US | Japanese components assembled in the US |