Binocular - B1.2 - 8x42


The B.1.2 is an updated version of our popular flagship B.1 Binocular. We took the best features of a classic and improved upon our original binocular design with a wider field of view, improved coatings, a larger, wider Schmidt-Pechan prism, and packaged it in a lighter, more compact build that boasts excellent light transmission. This binocular is our recommended go-to for an all-purpose optic for birding, and general-purpose wildlife viewing. Made to handle most situations, the B.1.2 features superior low-light performance, tack-sharp edge-to-edge clarity, generous depth of field, 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’ cost, 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 microfibre storage bag.


-Premium Model
-Size: 5.7 in.
-Weight: 26.8 oz.
-Extra-low Dispersion ED Glass
-Waterproof and Fog Proof
-Fully Multi-Coated Lenses
-Phase Correction Coating 
-Exceptionally Clear, Bright, High Contrast Image
-Excellent Color Fidelity
-Tripod Adaptable
-Lifetime Warranty

Binocular Comparison Chart (PDF)
Binocular Manual (PDF)

Obj. lens diameter42mm
Exit pupil5.25mm4.2mm
Field of View (FOV)

Apparent FOV (FOV x Power)

Field of view (ft/1000 yds)420347
Light transmission (%)93.95%94.50%
Twilight factor18.320.5
Multi Position Eyecups Y/NYes
Eye relief18.1mm17.8mm
Near focus4.9ft4.9ft
Eye width adjustment56~74mm


Dimension WxHxD5.2x5.7x2.2

Weight26.808 oz26.808 oz
Lens constr. obj.3 groups 4 elements (ED)
3 groups 4 elements (ED)
Lens constr. ocular4 groups 5 elements4 groups 6 elements
Prisms typeWide Angle

Wide Angle
Prism reflective coating typeDielectric Coating

Dielectric Coating
Phase Correction CoatingYesYes
ED glassYesYes
Lens coatingScratch and Oil Resistant
Scratch and Oil Resistant
Diopter correction (dpt)+/-3
Pressure tested to what pressure1m for 30 min. (IPX7)

1m for 30 min. (IPX7)
Storage temperature

Functional temperature

Frame materialMagnesium
Internal gas purgedNitrogen
Tripod Adaptable Y/NYesYes
OriginJapanese components assembled in the US
Japanese components assembled in the US

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