Binocular - B1.2 - 10x42
Binocular - B1.2 - 10x42
Binocular - B1.2 - 10x42
Binocular - B1.2 - 10x42
Binocular - B1.2 - 10x42

Binocular - B1.2 - 10x42

Regular price £1,049.99
Shipping calculated at checkout.

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 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 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.

 Magnification 8x 10x
Obj. lens diameter 42mm

Exit pupil 5.25mm 4.2mm
Field of View (FOV)


Apparent FOV (FOV x Power)


Field of view (ft/1000 yds) 420 362
Brightness 27.6 17.6
Light transmission (%) 93.95% 94.50%
Twilight factor 18.1 17.8
Multi Position Eyecups Y/N Yes

Eye relief 18.1mm 17.8mm
Near focus 4.9ft 4.9ft
Eye width adjustment 56~74mm


Dimension WxHxD 5.2x5.7x2.2

Weight 26.808 oz 26.808 oz
Lens constr. obj. 3 groups 4 elements (ED)

3 groups 4 elements (ED)
Lens constr. ocular 4 groups 5 elements 4 groups 6 elements
Prisms type Wide Angle Schmidt-Pechan

Wide Angle Schmidt-Pechan
Prism reflective coating type Dielectric Coating

Dielectric Coating
ED glass Yes Yes
Lens coating Scratch and Oil Resistant

Scratch and Oil Resistant
Diopter correction (dpt) +/-3

Pressure tested to what pressure 1m for 30 min. (IPX7)

1m for 30 min. (IPX7)
Storage temperature


Functional temperature


Frame material Magnesium

Internal gas purged Nitrogen

Tripod Adaptable Y/N Yes Yes
Origin Japanese components assembled in the US

Japanese components assembled in the US