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The Maven B.4 Binocular was designed to pick up where the B.2 leaves off and is built as an alternative to low to mid-powered spotting scopes. Built with a larger than typical ocular eyepiece, the B.4 offers a broader viewing area for when dimly-lit situations call for extra light and extra magnification. The B.4 is a large objective optic and is our recommended optic for hunters and birders who prefer to glass with a tripod setup.
The B.4 also features tack-sharp edge-to-edge clarity, generous depth of field, and a silky focus mechanism. Additionally, the split frame design gives this larger objective optic a lighter weight chassis all while maintaining durability.
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. Whether you choose a stock color unit or configure your own custom-built optic, our modern sportsman-inspired designs are paired with the best available materials and state of the art technology to create an uncompromising optic.
Includes neoprene neck strap, lens caps and double-layered microfiber storage bag.
HIGHLIGHTS
-Premium Model
-Size: 8.2 in.
-Weight: 48 oz.
-Extra-Low Dispersion ED 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
Binocular Comparison Chart (PDF)
Binocular Manual (PDF)
Magnification | 10x | 12x |
Obj. lens diameter | 56mm | 56mm |
Exit pupil | 5.6mm | 4.7mm |
Field of View (FOV) | 6.7° | 5.5° |
Apparent FOV (FOV x Power) | 67° | 66° |
Field of view (ft/1000 yds) | 352 | 289 |
Brightness | 31.4 | 21.8 |
Light transmission (%) | 93.70% | 94.20% |
Twilight factor | 23.7 | 25.9 |
Multi Position Eyecups Y/N | Yes | Yes |
Eye relief | 17mm | 18mm |
Near focus | 9.8ft | 9.8ft |
Eye width adjustment | 56~74mm | 56~74mm |
Dimension WxHxD | 6.1x8.2x2.6 | 6.1x8.2x2.6 |
Weight | 48 oz | 48 oz |
Lens constr. obj. | 3 groups 4 elements (ED) | 3 groups 4 elements (ED) |
Lens constr. ocular | 4 groups 5 elements | 5 groups 6 elements |
Prisms type | Abbe-Koenig | Abbe-Koenig |
Prism reflective coating type | N/A | N/A |
ED glass | Yes | Yes |
Lens coating | Scratch and Oil Resistant | Scratch and Oil Resistant |
Diopter correction (dpt) | +/-2 | +/-2 |
Pressure tested to what pressure | 1m for 30 min. (IPX7) | 1m for 30 min. (IPX7) |
Storage temperature | -40°~158°F | -40°~158°F |
Functional temperature | -13°~140°F | -13°~140°F |
Frame material | Polymer | Polymer |
Internal gas purged | Nitrogen | Nitrogen |
Tripod Adaptable Y/N | Yes | Yes |
Origin | Japanese components assembled in the US | Japanese components assembled in the US |