You May Also Like

The Essentials:

Bags, Cases & Straps:

Cleaning & Maintenance:

Nikon's black 16x50 Aculon A211 binoculars are the perfect tool for hunters, birders, and other outdoor enthusiasts who need an optic that produces in-depth, high-resolution, long-range observations due to their strong magnification and large objectives.

The enhanced light-gathering ability offered by the 50mm objectives helps to ensure views remain bright and clear when observing subjects at extreme long range, even under heavy cloud cover or dim light conditions, allowing users to resolve objects or games and make a clear identification. Anti-reflection multicoated aspherical lenses, made with environmentally friendly Eco-Glass elements, complement the BAK4 Porro prism light path to deliver high-contrast images with enhanced depth of field without edge distortion, as well as accurate colour fidelity. Despite their 16x magnification, this version of the A211 has a wide angle of view that helps to offset the dimming of the view and appearance of a visible hand shake that is common with high-power optics such as this, while presenting the user with an immersive observational experience.

The Aculon's sculpted rubber-armoured housing is designed to fit naturally into the observer's hand and provide secure non-slip handling. They are offered here in a subdued black colour. Fold-down rubber eyecups and comfortable eye relief enable easy viewing without eye fatigue, especially during long observation sessions. For those who might experience arm fatigue or a visible handshake from holding a high-power, large-objective optic, the binoculars can be tripod mounted using the included adapter. The combination of image quality and user-friendly design makes the 16x50 Aculon A211 a natural option for long-range glassing in even the most challenging light.

Optical Performance

Powerful 16x magnification allows for highly detailed observations of distant subjects

Large 50mm objective lenses improve the light-gathering ability to ensure distant views remain bright and sharp for better resolution, even in challenging light conditions

Traditional Porro prism light path produces a rich depth of field, allowing the user to discern the relative distances between objects being viewed

High refractive index BAK4 prisms deliver a round exit pupil and a crisp and clear image with limited edge distortion

Aspherical eyepiece lenses correct spherical aberration to produce clear and crisp images, with reduced edge distortion and astigmatism

Anti-reflection multicoated optics produce neutral and accurate colour fidelity and improve contrast and image brightness

Wide 61° apparent angle of view reduces the appearance of visible handshake that is common when holding high-power optics such as this

220-foot field of view at 1000 yards

Use and Handling

Large slip-resistant centre focus wheel is easy to manipulate, even while wearing gloves

Right-eye dioptric correction compensates for individual user's optical prescription for clearer and sharper views

56-72mm interpupillary adjustment range

Fold-down rubber eyecups for comfortable use with or without eyewear

Tripod mountable with adapter for hands-free use with reduced vibration and arm fatigue

12.6mm eye relief allows easy viewing without eye fatigue, especially during long observation sessions

3.1mm exit pupil

Construction Details

Environmentally friendly Eco-Glass is made without lead or arsenic

Protective rubber armouring provides a comfortable slip-resistant grip even in cold weather

Ergonomically sculpted grips

Tripod adapter included for hands-free use to eliminate the vibrations, shakes, and arm fatigue that is common when holding

high-power/large-objective optics

One-piece tethered ocular rainguard protects eyecups

Objective lens caps can be clipped to the neck strap to avoid losing them during observation sessions

Weight: 0.92 kg

Prism Type Porro
Magnification 16x
Objective Lens Diameter 50 mm
Angle of View 4.2° (Actual)
Field of View 220' @ 1000 yd / 73 m @ 1000 m
Minimum Focus Distance 29.5' / 9 m
Exit Pupil Diameter 3.1 mm
Eye Relief 12.6 mm
Interpupillary Adjustment 56 to 72 mm / 2.2 to 2.8"
Diopter Adjustment Yes
Focus Type Center
Dimensions 19.7 x 17.9 cm
Weight 0.92 kg

* Specifications subject to change by the manufacturer without notice

  • Nikon 16x50 Aculon A211 Binoculars (Black)
  • Nikon Action/Action EX/Marine Series Binocular Tripod Adaptor
  • Carrying Case
  • Neck Strap
  • 1-Piece Ocular Rain Guard
  • 2 x Objective Lens Cap

Manufacturer Warranty


This product comes with a

12*  month Australian warranty

from Nikon Australia

*Available with free registration at

My Nikon Life


* Dispatch timeframes are indications only and may vary for multiple quantities. Timeframes are updated regularly during normal business hours.