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Nikon Aculon A211 7x35 bak-4 porro prism binocular


Product Highlights


  • Aspheric Lens Design
  • Lead- and Arsenic-Free Eco-Glass
  • BAK4 Traditional Porro Prisms
  • Anti-Reflection Multi-Coated Optics
  • Large Center Fast-Focus Knob
  • Tripod Mountable with Optional Adapter
  • Twist-Up Rubber Eyecups
  • Long Eye Relief and Wide Exit Pupil

Optical Performance 


  • 7x power provides moderate magnification while helping to produce a comfortable exit pupil, despite the relatively small objectives, for easier low-light use
  • 35mm objective lenses provide improved low-light performance versus compact models, without the bulk and weight of larger-objective models
  • Traditional Porro prism design makes it comfortable to hold and presents a rich depth of field
  • High-index BAK4 prisms deliver a round exit pupil and a crisp and clear image with limited edge distortion
  • Aspherical eyepiece lenses correct spherical aberrations to produce clear and crisp images, with reduced edge distortion and astigmatism
  • Anti-reflection multi-coated optics produce neutral and accurate color fidelity and improve contrast and image brightness
  • 59° apparent angle of view approaches wide-angle to minimize the appearance of visible hand shake and present an immersive viewing experience
  • 488-foot field of view at 1000 yards


Magnification 7x

Objective Lens Diameter 35 mm

Angle of View 9.3° (Actual)

Field of View 488' @ 1000 yd / 162 m @ 1000 m

Minimum Focus Distance 16.4' / 5 m

Exit Pupil Diameter 5 mm

Eye Relief 11.8 mm

Diopter Adjustment Yes

Focus Type Center


Dimensions 7.3 x 4.6" / 18.5 x 11.7 cm

Weight 24.2 oz / 686.1 g

Nikon Aculon A211 7x35 bak-4 porro prism binocular


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