The Leupold BX-4 Range HD Gen 2 TBR/W 12x50mm Rangefinder Binocular (Model LE185700) in Shadow Gray integrates high-performance optical glass with Leupold's fast DNA ranging engine and ballistics software. This dual-purpose optical instrument allows outdoor enthusiasts to spot, track, and range targets instantly without switching between separate handheld devices. Built with a rugged, rubber-armored magnesium alloy chassis, this unit is completely waterproof and fogproof, delivering clear images and fast range measurements under harsh field conditions.

Key Features:

• Elite Optical System: Uses extra-low dispersion glass to minimize color fringing, offering clear resolution, glare reduction in direct sunlight, and light transmission from dawn to dusk.
• True Ballistic Range/Wind (TBR/W): Calculates precise ballistically compensated ranges for steep angles and long distances, providing hold points for a 10-mph wind at a 90-degree angle up to 800 yards.
• Bow Mode & Archer’s Advantage: Calculates true arrow flight paths based on weight, velocity, and peep height, aiding bowhunters negotiating steep shot angles.
• Red OLED Display: Displays vital data through a bright, dimmable red OLED reticle that remains visible against dark and complex backgrounds.
• Advanced Target Modes: Includes Last Target mode to bypass intervening rain, fog, or brush, alongside a standard Line of Sight (LOS) mode.
• Independent Power Supply: Powered by a single 3V CR2 lithium battery, eliminating any reliance on 240V mains power or charging adapters in the field.

Specifications:

• Magnification: 12x
• Objective Lens Diameter: 50 mm
• Dimensions: 6.3 inches L x 2.7 inches H x 5.3 inches W (approx. 160 mm x 68.6 mm x 134.6 mm)
• Weight: 39 oz (approx. 1,105 grams) with battery installed
• Reflective Target Range: Up to 4,000 yards (3,657 metres)
• Tree Ranging Capability: Up to 2,200 yards (2,012 metres)
• Deer-sized Game Range: Up to 1,400 yards (1,280 metres)
• Battery Life: Over 4,000 actuations on a single CR2 battery
• Tripod Compatibility: Built-in 1/4-20 tripod adapter mount port
• Laser Safety: Built-in Class 1M eye-safe infrared laser

Who It Is For:

The Leupold BX-4 Range HD Gen 2 12x50 is designed for long-range hunters, mountain hunters glassing wide valleys for deer, tahr, or goats, and precision rifle shooters who require rapid ballistic calculations. Because this device runs entirely on a standard, user-replaceable CR2 lithium battery, it does not require AS/NZS 3112 Australian wall plugs or electrical safety approvals. This makes it highly reliable for remote Australian expeditions where mains power is unavailable, allowing users to easily source spare batteries from local retail outlets.