Kowa BD III XD 10x50 Large Objective Binoculars - Green

Kowa 10x50 BD III Binocular Optics & Performance

The 50mm objective lenses provide substantial light-gathering capability, making the BD III 10x50 particularly suitable for observation in lower-light conditions. Combined with 10x magnification, this provides the reach needed for observing distant birds, wildlife and open landscapes while maintaining excellent image clarity.

Premium Kowa XD lenses help produce high-contrast images with natural colour reproduction while reducing chromatic aberration. The binocular also features multi-coated optics for superb clarity.

Kowa 10x50 BD III Binocular Construction

Despite its large 50mm objective lenses, the BD III 10x50 uses a lightweight magnesium alloy body to keep weight to 725g. Measuring 160 x 134 x 57mm, it combines the benefits of a large-objective binocular with a design intended to remain comfortable to carry in the field.

Waterproof & Nitrogen-Filled Design

The BD III 10x50 is waterproof and nitrogen filled, providing dependable performance in changing outdoor conditions. Kowa's KR lens coating adds further protection to the optical surfaces, supporting reliable use in all-weather environments.

Kowa 10x50 BD III Binocular Key Features

• 10x magnification with large 50mm objective lenses
• Premium Kowa XD lenses
• Bright, high-contrast image performance
• Natural colour reproduction
• Reduced chromatic aberration
• Multi-coated optics
• Designed for low-light observation at dawn and dusk
• Lightweight magnesium alloy body
• Waterproof construction
• Nitrogen filled
• Kowa KR protective lens coating
• 17mm eye relief

Kowa 10x50 BD III Binocular Specifications

• Magnification: 10x
• Objective lens effective diameter: 50mm
• Exit pupil diameter: 5mm
• Eye relief: 17mm
• Field of view: 6.6°
• Field of view at 1000m: 115.3m
• Minimum focusing distance: 3.5m
• Dimensions: 160 x 134 x 57mm
• Body weight: 725g

What's Included

• Binocular
• Case
• Strap
• Objective lens caps
• Eyepiece caps
• Instruction manual

Kowa 10x50 BD III Binocular Review

The Kowa 10x50 BD III Binocular is a large-objective binocular aimed at birders and outdoor enthusiasts who prioritise brightness and detailed long-range observation. Its combination of 10x magnification, 50mm objective lenses and premium Kowa XD optics makes it particularly well suited to distant wildlife and landscape viewing, including observation during challenging lighting conditions.

A magnesium alloy body keeps weight to 725g, while waterproof and nitrogen-filled construction gives the binocular the protection required for regular outdoor use.

Kowa 10x50 BD III Binocular Performance & Key Features

The defining feature of the BD III 10x50 is its combination of 10x magnification and large 50mm objective lenses. The larger objectives gather more light, supporting bright observation at dawn, dusk and under overcast skies, while Kowa XD lenses provide high contrast, natural colour reproduction and reduced chromatic aberration.

• Large 50mm objectives for strong light-gathering performance
• 10x magnification for observing distant subjects
• Premium Kowa XD lenses
• 115.3m field of view at 1000m
• 5mm exit pupil

Build Quality & Handling

The magnesium alloy body provides a durable foundation while helping limit the weight of the large 10x50 configuration to 725g. Waterproof and nitrogen-filled construction provides protection against challenging weather conditions, with Kowa's KR coating adding further protection to the lenses.

At 160 x 134 x 57mm, it is naturally larger than a compact binocular, but its construction is specifically designed to remain comfortable to carry despite the substantial 50mm objective lenses.

Is the Kowa 10x50 BD III Binocular Easy to Use?

The BD III 10x50 is designed to provide straightforward, user-friendly observation despite its larger optical configuration. A 6.6° field of view gives 115.3m of coverage at 1000m, helping users locate distant birds and wildlife while benefiting from the increased detail of 10x magnification.

Its 17mm eye relief and lightweight magnesium alloy construction also contribute to practical field use.

Key Takeaways of the Kowa 10x50 BD III Binocular

The Kowa BD III 10x50 is particularly compelling for users who value brightness and long-distance detail. Large 50mm objective lenses, premium Kowa XD optics and a 5mm exit pupil give it strong credentials for dawn, dusk and overcast observation, while 10x magnification provides useful reach for distant birds and wildlife. Its 725g weight and larger dimensions reflect the substantial 50mm optical system, but the magnesium alloy construction keeps the binocular relatively portable for its format. For Uttings customers seeking a bright, high-performance binocular for longer-range nature observation and difficult lighting conditions, the BD III 10x50 is a strong choice.

Kowa 10x50 BD III Binocular FAQs

What magnification does the Kowa 10x50 BD III Binocular have?

The Kowa BD III uses 10x magnification. This provides substantial reach for observing distant birds, wildlife and open landscapes while retaining a useful 115.3m field of view at 1000m.

Why does the Kowa 10x50 BD III use 50mm objective lenses?

The large 50mm objective lenses gather more light, helping the binocular produce bright views in challenging lighting conditions. This makes the BD III 10x50 particularly well suited to birdwatching and wildlife observation at dawn, dusk and under overcast skies.

Is the Kowa 10x50 BD III suitable for low-light observation?

Yes. Low-light performance is one of the main strengths of the BD III 10x50. Its 50mm objective lenses and 5mm exit pupil are designed to support bright observation in conditions such as dawn, dusk and overcast weather.

What optical glass does the Kowa 10x50 BD III use?

The binocular uses premium Kowa XD lenses. These are designed to provide bright, high-contrast images with natural colour reproduction while reducing chromatic aberration.

What is the field of view of the Kowa 10x50 BD III?

The BD III 10x50 has a 6.6° field of view, equivalent to 115.3m at 1000m. This provides useful visual coverage for locating and observing distant subjects.

How close can the Kowa 10x50 BD III focus?

The minimum focusing distance is 3.5m. The binocular is principally designed for observing more distant birds, wildlife and landscapes.

Is the Kowa 10x50 BD III waterproof?

Yes. The binocular features waterproof construction and is nitrogen filled. This provides dependable protection for outdoor use in changing weather conditions.

What is the eye relief of the Kowa 10x50 BD III?

The specified eye relief is 17mm. This forms part of the optical specification alongside the 10x magnification, 50mm objective lenses and 5mm exit pupil.

How much does the Kowa 10x50 BD III weigh?

The binocular body weighs 725g. Its magnesium alloy construction helps limit weight despite the use of large 50mm objective lenses.

What are the dimensions of the Kowa 10x50 BD III?

The binocular measures 160 x 134 x 57mm. These dimensions accommodate its substantial 50mm optical system while retaining a design intended to remain practical to carry outdoors.

What comes with the Kowa 10x50 BD III Binocular?

The binocular is supplied with a case, strap, objective lens caps, eyepiece caps and an instruction manual.

What warranty does the Kowa 10x50 BD III have?

The Kowa 10x50 BD III is covered by Kowa's standard 10-year warranty.

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