Product Description
Barr & Stroud Sierra 12x50 – High-Powered, Precision Binoculars for Detailed Viewing
The Barr & Stroud Sierra 12x50 is the most powerful model in the Sierra range, designed for those who demand maximum magnification in a rugged, high-performance binocular. If power and long-distance viewing are your top priorities, this model delivers exceptional clarity and reach, making it ideal for wildlife observation, surveillance, and long-range viewing.
With 12x magnification, this binocular brings distant subjects closer than ever, offering sharp, contrast-rich images under normal daylight conditions. While higher magnification makes it harder to hold steady than a 10x model and is less suited to low-light use, its 82m field of view at 1000m ensures a truly immersive viewing experience.
Why Choose the Barr & Stroud Sierra 12x50?
- Powerful 12x Magnification & 50mm Objective Lenses – Provides exceptional detail and clarity, perfect for long-range observation.
- Rugged, Weatherproof Build – Fully waterproof up to 1.5m for three minutes, ensuring protection against rain, splashes, and accidental submersion.
- Shock-Resistant, Rubber-Armoured Body – Offers enhanced durability and grip, protecting against bumps and knocks in harsh conditions.
- Fog-Free Viewing – Nitrogen-filled construction prevents internal fogging, allowing for clear performance in extreme weather conditions.
- Fully Multi-Coated Optics & BaK-4 Phase-Coated Prisms – Maximises light transmission for bright, high-contrast images with accurate colour reproduction.
- Rapid Focus System – The super-smooth focus control wheel allows for quick adjustments from close focus to infinity in under one turn.
- Twist-Up Rubber Eyecups – Designed for comfortable viewing with or without glasses, ensuring a custom fit for every user.
- Tripod Adaptable – Compatible with a tripod adaptor, providing steady, hands-free viewing when needed.
Included Accessories
- Carrying case
- Rain guards
- Tethered lens caps
- Neck strap
- Lens cleaning cloth
Technical Specifications
- Model: 12x50
- Magnification: 12x
- Objective Lens Diameter: 50mm
- Field of View at 1000m: 82m
- Angular Field of View: 4.7°
- Close Focus: 2.5m
- Eye Relief: 14.2mm
- Exit Pupil Diameter: 4.16mm
- Waterproof: Yes
- Nitrogen Filled: Yes
- Prism Design: Roof
- Prism Glass Type: BAK-4
- Phase Coated Prisms: Yes
- ED Optics: No
- Fully Multi-Coated Optics: Yes
- Water Repellent Lens Coating: No
- Body Material: Polycarbonate
- Open-Bridge Design: No
- Adjustable Eyecups: Twist-up
- Focusing System: Centre
- Interpupillary Distance: 56mm–74mm
- Dioptric Compensation Range: +4~-4
- Tripod Adaptor Bush: Yes
- Dimensions: 162 x 131 x 57mm
- Weight: 780g
The Barr & Stroud Sierra 12x50 is the ideal choice for users who need high-magnification performance in a durable, weatherproof design. Whether you're watching wildlife, surveying landscapes, or tracking distant subjects, these binoculars provide outstanding detail and reliability in a robust, user-friendly package.
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