BAK4 Roof Prisms, Anti-Reflection Multi-Coated Optics, Center Focusing

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North Island
South Island

Bushnell 's 10x28 Off Trail Binocular is an ideal companion for your pack or bag when you need power without bulk. To offset the smaller objectives are BAK4 roof prisms and anti-reflection multi-coated optics that produce clear and crisp high-contrast images with true colour rendition. The combination of right-eye dioptric correction and large focusing knob ensures sharply defined images, and to give you an immersive observational experience the apparent angle of view approaches wide-angle so you'll be sure to see the whole scene in front of you. Twist-up eyecups make the Off Trail comfortable to use with or without eyewear.

Key Features

Optical Performance
  • 10x magnification
  • 28mm objectives
  • BAK4 compact roof prism optical path
  • Anti-reflection multi-coated optics reduces light loss, and improves image colour and contrast
  • 300' field of view at 1000 yards
  • 57° apparent angle of view
Use and Handling
  • Closed-bridge configuration
  • Large knurled centre focus wheel
  • Right-eye dioptric correction
  • Twist-up rubber eyecups for use with or without eyewear
  • Long 16mm eye relief
  • 2.8mm exit pupil
Construction Details
  • Protective rubber armouring provides a slip-resistant grip
  • Pebble-texture and ribbing enable more secure handling
  • Nitrogen-filled, water and fogproof - especially when moving between extreme temperatures
  • Weight: 14.3 ounces


Prism TypeRoof
Objective Lens Diameter28mm
Angle of View5.7° (actual)
Field-of-View300.0' @ 1000 yd / 99.6 m @ 1000 m
Minimum Focus Distance7.0' / 2.13 m
Exit Pupil Diameter2.8  mm
Eye Relief16.0  mm
Interpupillary AdjustmentNot Specified By Manufacturer
Dioptric CorrectionNot Specified By Manufacturer
Focus TypeCentre
Tripod MountNone
DimensionsNot Specified By Manufacturer
Weight14.3 oz / 405 g
Bushnell 10x28 Off Trail Binocular
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