The GPO PASSION™ HD 15x50 (Model B700) is a high-magnification roof-prism binocular engineered for long-range observation, game scouting, and target spotting. Featuring a double HD laminated glass lens system paired with Schmidt-Pechan roof prisms, it delivers edge-to-edge clarity and colour fidelity across expansive open terrain. Built with a lightweight magnesium alloy micro-bridge chassis and aluminium eyecup tubes, the binocular weighs 965 g and includes a standard 1/4"-20 threaded tripod adapter interface to support steady, extended glassing sessions without the bulk of a standalone spotting scope.

Key Features

• High-Definition Optical System: Double HD laminated glass lenses combined with proprietary GPObright™ anti-reflective coatings deliver high-resolution images and colour fidelity across an 81.2 m field of view at 1,000 m.
• Protective Lens Coatings: PASSIONdrop™ hydrophobic multi-coatings repel water, dirt, and residue from exposed optical surfaces.
• Precision Focus & Diopter: Features a smooth center-focusing dial with an integrated locking diopter ring for secure, custom adjustment.
• All-Weather Construction: O-ring sealed and nitrogen-purged for complete waterproof and fogproof performance in demanding outdoor conditions.
• Integrated Tripod Interface: Built-in 1/4"-20 mounting threads allow quick attachment to tripods via the included adapter to stabilize the 15x magnification.

Technical Specifications

• Magnification: 15x
• Objective Lens Diameter: 50 mm
• Prism System: Schmidt-Pechan roof prisms
• Exit Pupil: 3.33 mm
• Eye Relief: 16.5 mm
• Close Focus Distance: 3.0 m
• Field of View: 81.2 m at 1,000 m
• Weight: 965 g
• Chassis Material: Magnesium alloy with aluminium eyecup tubes
• Mounting Interface: 1/4"-20 tripod thread (tripod adapter included)

Who is the GPO PASSION HD 15x50 for?

• Open country and hillside hunters — 15x magnification combined with 50 mm objective lenses enables fine trophy identification and game spotting across wide valleys and distant ridgelines while keeping pack weight to 965 g.
• Long-range target shooters — 15x optical power and a 3.0 m close focus distance provide high-resolution spotting of projectile impacts and target details at the range without requiring a dedicated spotting scope.
• Wildlife and bird observers — High-magnification roof-prism binocular design provides detailed observation of distant subjects with a 3.33 mm exit pupil and 81.2 m field of view at 1,000 m across wide, open landscapes.

Less suitable for: Dense bushland navigation or continuous off-hand scanning, where 15x magnification amplifies hand jitter and the 3.33 mm exit pupil restricts low-light intake compared to lower-power 8x42, 10x42, or larger-exit-pupil 8x56 handheld binoculars.