Description
Nikon 16×50 Aculon A211 Binoculars
Maximum magnification, bright optics, and rugged performance for serious long-range observation
The Nikon 16×50 Aculon A211 Binoculars are built for users who need the most powerful handheld magnification in the Aculon A211 lineup—ideal for long-distance terrestrial viewing, wildlife tracking, or casual astronomical observations. Combining Nikon's legendary optical quality with durable construction, these binoculars deliver outstanding performance at a highly competitive price.
🔭 Extreme Magnification with Large Objective Lenses
With a powerful 16× magnification, the Aculon A211 16×50 gives you the ability to observe extremely distant subjects—perfect for spotting ships on the horizon, aircraft in flight, or details on mountain peaks. The 50 mm objective lenses gather ample light, making them usable in various lighting conditions, including early morning, twilight, or even moonlit nights.
This model’s field of view is narrower than the 12× version (approximately 66 m at 1000 m), but in return, you get a more zoomed-in and detailed image that brings faraway scenes dramatically closer.
🔬 Nikon Eco-Glass® Optics with Advanced Coatings
All lenses are made with Eco-Glass®, free from lead and arsenic, and are multicoated to enhance brightness and contrast while reducing glare and reflection. These coatings allow more light to reach your eyes, ensuring crisp, vibrant images even in suboptimal lighting.
The inclusion of aspherical eyepiece lenses minimizes image distortion at the edges of the field, resulting in sharper and more natural-looking images throughout your view.
🔍 High-Quality BaK‑4 Porro Prisms
The optical path features BaK‑4 glass Porro prisms, which provide a natural depth of field, rich image contrast, and excellent sharpness. The classic Porro design also contributes to better three-dimensionality and light efficiency compared to many roof prism alternatives in the same price range.
💪 Durable, Outdoor-Ready Construction
The exterior is coated with shock-resistant rubber armor, which improves grip and adds impact protection for daily field use. The body is rugged enough for hiking, coastal viewing, or stargazing in the backyard. Although not fully waterproof, the Aculon A211 16×50 is splash-resistant and well-suited for dry outdoor environments.
👓 Comfortable Eyepiece Design
The binoculars feature turn-and-slide rubber eyecups that allow you to adjust the eye relief for a comfortable view—whether you wear eyeglasses or not. With eye relief of 12.6 mm, most users will find the viewing experience pleasant for short to moderate periods. The large central focus wheel ensures smooth, precise adjustments even with gloves or cold fingers.
🧭 Tripod Adaptable and Travel-Ready
Due to its high magnification, this model is best used with tripod support for extended sessions. Thankfully, the Aculon A211 16×50 is tripod-adaptable, letting you attach it easily using an optional adapter for hands-free, stable observation.
It also comes equipped with a carrying case, neck strap, lens caps, and an eyepiece cap, giving you everything you need to keep your binoculars safe and ready for action wherever your adventures lead.
In summary:
If you're looking for maximum magnifying power in a compact and reliable package, the Nikon 16×50 Aculon A211 is a top-tier choice for its class. Whether you're observing wildlife across vast distances, scanning the landscape from a mountain top, or enjoying views of the Moon, this binocular offers exceptional reach, excellent optics, and long-lasting build quality at an attractive price point.
✅ Specification Table for Nikon 16x50 Aculon A211 Binoculars
| Category | Specification |
|---|---|
| Type of Build | Porro prisms |
| Magnification | 16× |
| Objective Lens Diameter | 50 mm |
| Exit Pupil | 3.1 mm |
| Eye Relief | 12.6 mm |
| Interpupillary Distance | 56–72 mm |
| Lens Coating | Fully multi-coated |
| Prism Material | BaK‑4 glass |
| Eyecup Type | Turn-and-slide rubber eyecups |
| Diopter Adjustment | Right side |
| Field of View (True) | 4.2° |
| Field of View (Apparent) | 60.8° |
| Field of View at 1,000 m | 73 m |
| Close Focus Limit | 9 m |
| Relative Brightness | 9.6 |
| Focusing System | Central focusing wheel |
| Eyeglass-Friendly | Yes |
| Tripod Adaptable | Yes (tripod adapter required) |
| Special Features | Splash-resistant, lens covers included |
| Compass / Rangefinder | No |
| Zoom Function | No |
| Included Accessories | Carrying bag, lens caps, eyepiece cap, neck strap |
| Strap Fitting | Loops connector, wide |
| Dimensions (L × W) | 179 mm × 197 mm |
| Weight | Approx. 925 g |
| Color | Black |
| Series | Nikon Aculon A211 |
✅ Recommended Use Table
| Application | Suitability |
|---|---|
| Astronomy | Good (high magnification, tripod adaptable, suitable for Moon, star clusters, and bright deep sky) |
| Bird Watching | Moderate (excellent reach, but narrow field of view and image shake if handheld) |
| Hunting | Moderate (good optical clarity at long range, but not fogproof or waterproof) |
| Travel & Sports | Limited (somewhat heavy, narrow FOV, not ideal for fast-moving action or long hikes) |
| Sailing | Not Recommended (not waterproof or marine-rated) |
| Theatre | Not Recommended (magnification too high and FOV too narrow for indoor/close-up events) |






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