With high magnification and wide objectives required by birders, hunters, and outdoor enthusiasts who work at long-ranges and in challenging conditions, the Opticron 10x50 Adventurer II WP Binoculars are designed to bring far-off subjects up close while providing extended performance in low light. Outfitted with BAK 4 prisms and fully multicoated optics, they deliver high-contrast views that are bright and clear. Their long eye relief and wide exit pupil boost the comfort level during extended observation sessions and reduces eye fatigue — especially at dawn and dusk or when peering into dense brush or under a heavy wooded canopy.

The aluminum and polycarbonate body makes them strong and durable, and they are designed with a neutral weight distribution to ensure the center of gravity sits naturally in your hand to help prevent arm fatigue. Protective rubber armor and raised palm pads provide a slip-resistant grip, while the large textured focus wheel makes them easy to use, especially in cold and wet weather, or when wearing gloves. The optical tubes are nitrogen-filled and O-ring sealed to make them waterproof and to prevent internal fogging when moving through extreme temperature and environmental conditions. Tethered objective lens caps and a one-piece ocular rainguard ensure they are close at hand when needed and allow for fast deployment in the field.

Optical Performance

• High 10x magnification for making detailed observations of distant objects
• Large 50mm objective lenses gather generous amounts of light to boost low-light performance while helping to produce a wide exit pupil
• Compact roof prisms help keep the form-factor slim for easy packing and carrying while being comfortable to hold
• BAK4 prisms deliver a round exit pupil plus a crisp and clear image with limited edge distortion
• Antireflection, fully multicoated optics maximize light transmission to help produce accurate color fidelity and improve contrast and brightness
• 288' field of view at 1000 yd

Use and Handling

• Closed-bridge configuration adds stability while providing a solid platform for the focusing mechanism
• Large textured slip-resistant focusing knob is easy to manipulate precisely, even while wearing gloves
• ±2 right-eye dioptric correction for precise focus adjustment to most user's individual prescription
• 57-73mm inter-pupillary adjustment range
• Twist-up rubber eyecups for comfortable use with or without eyewear
• Tripod mountable with optional adapter for hands-free use and reduced arm fatigue and vibrations
• Long 17mm eye relief makes long-duration observation sessions comfortable with reduced eye strain
• Wide 5mm exit pupil will cover pupils as they open and dilate in low light

Construction Details

• Lightweight and sturdy aluminum and polycarbonate construction
• Neutral balance makes them comfortable in the hand to reduce fatigue during long glassing sessions without a support system
• Nitrogen-filled and O-ring sealed to be waterproof and resistant to internal fogging when moving through extreme temperature changes
• Protective rubber armor provides a slip-resistant grip
• Textured palm pads improve grip security and stability — especially in wet weather
• Tethered 1-piece ocular rain-guard and objective lens caps prevents their loss while staying close at hand
• Weight: 27 oz

What’s Included?

• Opticron 10x50 Adventurer II WP Binoculars (BAK4 Prism)
• Lens Cloth
• Padded Neck Strap
• Soft Carrying Case
• 2 x Tethered Objective Lens Cap
• One-Piece Ocular Rain-guard
• Limited 2-Year Manufacturer Warranty

Specification

Magnification	10x
Objective Lens Diameter	50 mm
Angle of View	5.5° (Actual)
Field of View	288' @ 1000 yd / 95.6 m @ 1000 m
Minimum Focus Distance	9.8' / 3 m
Exit Pupil Diameter	5 mm
Eye Relief	17 mm
Inter-pupillary Adjustment	57 to 73 mm / 2.2 to 2.9"
Diopter Adjustment	-2 to +2
Focus Type	Centre
Fog-proof	Yes, Nitrogen Filled
Environmental Protection	Advertised as Water Resistant *Test Methodology Not Supplied
Dimensions	6.4 x 5.2" / 16.2 x 13.3 cm
Weight	26.8 oz / 760 g
Package Weight	2.33 lb
Box Dimensions (LxWxH)	8 x 6.4 x 3.2"