BAK4 Porro Prisms, Fully Multi-Coated Optics, Wide Angle Viewing

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The 10x42 NatureView Porro Binocular from Bushnell  has a lead-free optical path that is fully multi-coated for enhanced contrast and image clarity. This model of the NatureView series binocular uses a Porro prism design that offers improved light transmission and more depth of field compared to roof prism designs. Twist-up eyecups and 15mm eye relief permit a comfortable viewing distance even while wearing eyeglasses. A 66° apparent viewing angle provides immersive views, making the 10x42 NatureView a well-equipped binocular for almost any mid-range observation.

Key Features

Optical Performance
  • Magnification: 10x
  • Objective lenses: 42mm diameter
  • Porro prism design, BAK4 prism glass
  • Fully multicoated optics
  • Lead-free optical system
  • Apparent viewing angle: 66°
Use and Handling
  • Centre focus wheel with ergonomic texture and ridges
  • Twist-up eyecups for comfortable eye relief
  • 1/4"-20 threaded mount for tripod adapter
  • 15mm eye relief
Construction Details
  • Rubber armoured body for non-slip grip in wet conditions
  • Weight: 27.8 oz


Prism TypePorro
Objective Lens Diameter42mm
Angle of View6.6° (actual)
Field-of-View345.0' @ 1000 yd / 114.5 m @ 1000 m
Minimum Focus Distance11.5' / 3.51 m
Exit Pupil Diameter4.2  mm
Eye Relief15  mm
Interpupillary AdjustmentNot Specified By Manufacturer
Dioptric CorrectionNot Specified By Manufacturer
Focus TypeCentre
Tripod MountYes (Adapter Optional)
DimensionsNot Specified By Manufacturer
Weight27.8 oz / 788.13 g
Bushnell 10x42 NatureView Porro Binocular
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