B.5 - Grey / Orange

$ 1,500

15X56 / 18X56

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.

The B.5 also features tack-sharp edge-to-edge clarity, crystal clear glass, considerable eye relief, and a silky focus mechanism.

The Maven B Series represents our elite line of optics, designed to fit your specific needs, delivered for a fraction of comparable binoculars’ costs and stacks up with the most celebrated and expensive binoculars in the world. Our modern sportsman inspired designs paired with the best available materials and state of the art technology create an uncompromising optic.

Includes neoprene neck strap, lens caps and double-layered microfiber storage bag.


-Premium Model
-Size: 8.2 in.
-Weight: 45 oz.
-Fluorite glass
-Waterproof and Fog Proof
-Fully Multi-coated lenses 
-Exceptionally clear, bright, high contrast image
-Excellent color fidelity
-Tripod Adaptable
-Lifetime Warranty
-Direct to Consumer / No Retail Markup

View Spec List

 Magnification 15x 18x
Obj. lens diameter 56mm 56mm
Exit pupil 3.7mm 3.1mm
FOV 4.5° 3.7°
Apparent FOV (FOV x Power) 67.5° 66.6°
Field of view (ft/1000 yds) 236
Brightness 13.9
Light transmission (%) 92.90% 92.90%
Twilight factor 29
Multi Position Eyecups Y/N Yes Yes
Eye relief 17.8mm 18mm
Near focus 9.8ft 9.8ft
Eye width adjustment 56~75mm 56~75mm
Dimension WxHxD 6.1x8.2x2.5 6.1x8.2x2.6
Weight 45 oz 45 oz
Lens constr. obj. 3 groups 4 elements (ED) 3 groups 4 elements (ED)
Lens constr. ocular 4 groups 6 elements 4 groups 6 elements
Prisms type Abbe-Koenig
Prism reflective coating type N/A
ED glass Flourite
Lens coating Scratch and Oil Resistant Scratch and Oil Resistant
Diopter correction (dpt) more than +/-2 more than +/-2
Pressure tested to what pressure 1m for 30 min. (IPX7) 1m for 30 min. (IPX7)
Storage temperature -40°~158°F
Functional temperature -13°~140°F -13°~140°F
Frame material Magnesium
Internal gas purged Nitrogen Nitrogen
Tripod Adaptable Y/N Yes Yes
Origin Japanese components assembled in the US Japanese components assembled in the US

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