The Maven B.5 15x56 is a serious open-country glassing tool.  We highly recommend that you pair these high-magnification binoculars with a sturdy tripod (we include a binocular-to-tripod adapter with each rental).  Maven is one of the world's newest premier optics manufacturers.  All optics from Gear Shack are in excellent condition and have clear glass - guaranteed.


Best Use: Long-range glassing for wildlife


Binocular MSRP:  $1,500.00

Benro Adventure AL Tripod MSRP:  $200

Outdoorsmans Compact Tripod w/ Pan Head MSRP:  $920


From Maven:

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. 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.




 Magnification 10x 12x 15x 18x
Obj. lens diameter 56mm 56mm 56mm 56mm
Exit pupil 5.6mm 4.7mm 3.7mm 3.1mm
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 (%) 92.90% 92.90% 92.90% 92.90%
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 6.1x8.2x2.5 6.1x8.2x2.5 6.1x8.2x2.5 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
ED glass Flourite Flourite Flourite Flourite
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

Maven B.5 15x56 Binoculars

  • Binocular Weight:  2lb 13oz

    Benro Adventure AL Tripod w/ Pan head Weight:  5lb 14.56oz

    Outdoorsmans Compact Tripod w/ Pan Head Weight:  3lb 13.2oz


    If you are unhappy with your Gear Shack experience for any reason, please reach out to us. We want the opportunity to make things right - which may include issuing a complete refund.                                              


    We understand that plans can change. If you cancel two weeks or more before the start of your rental period, we will provide a full refund. Any cancellations made within two weeks are not eligible for a refund.