Vortex Diamondback HD 15x56

• 15x magnification with 56 mm objectives: brings distant game, terrain details, and impact spotting closer while the larger front lenses help maintain image brightness for long-range glassing.
• HD optical system: uses selected glass elements to reduce chromatic aberration, which helps deliver cleaner edges, better contrast, and more natural color in difficult light.
• Roof prisms with dielectric and phase-correction coatings: improve resolution and contrast while keeping the binocular slimmer and easier to carry than a bulkier porro-prism design.
• Magnesium housing with waterproof and fogproof construction: keeps weight manageable for a 15x56 binocular and adds the weather resistance needed for hunting and observation in changing conditions.
• Tripod adaptable design: supports steadier viewing at 15x, reducing shake during long sessions and making it easier to study distant animals or scan open country.

About the Vortex Diamondback HD Series

Vortex Diamondback HD sits in the brand’s binocular catalog as a practical, field-oriented line built for hunters and wildlife observers who want dependable optical performance without moving into Vortex’s more specialized premium families. The series spans from compact 28 mm models to full-size 15x56 versions, giving it a broad reach across travel, woodland hunting, open-country glassing, and general observation. That range makes Diamondback HD one of the more versatile binocular families in the Vortex lineup.

Across the series, the emphasis is on a balanced combination of portability, durability, and clear viewing. The HD optical system is designed to reduce chromatic aberration, while fully multi-coated lenses, dielectric prism coatings, and phase-correction coatings on the roof prisms help preserve contrast, color fidelity, and usable low-light performance. In practical terms, Diamondback HD binoculars are meant to deliver a clean, bright image in a package that remains straightforward to use in the field. The series is especially well suited to users who need a reliable hunting binocular with modern coatings, weather-resistant construction, and model options that cover everything from close-range scanning to long-distance observation.

About the Vortex Diamondback HD 15x56

Vortex Diamondback HD 15x56 is the long-range specialist in the Diamondback HD binocular family. Its 15x magnification gives it a clear advantage when glassing open country, picking apart distant hillsides, or studying animals and terrain features that would appear too small through a lower-power binocular. Paired with 56 mm objective lenses, it gathers enough light to remain useful in the low-angle light of early morning and late evening, while the 3.70 mm exit pupil helps maintain a comfortable, usable image for deliberate observation.

The optical layout is built around roof prisms in a Schmidt/Pechan configuration, which keeps the binocular more compact than a comparable porro design. Fully multi-coated lenses work together with dielectric and phase-correction prism treatments used in the Diamondback HD series to support better contrast, cleaner detail, and more natural color. The 76.60 m/1000m field of view is controlled rather than wide, which suits the binocular’s role as a detail-oriented observation tool rather than a fast close-range scanner.

Mechanically, this model is configured for steady, practical field use. The magnesium body keeps weight to 990.00 g, helping portability for a 15x56 format, while the central focusing system allows quick adjustment as viewing distances change. 15.60 mm eye relief offers workable comfort for extended sessions, and the right-eye diopter helps fine-tune the image to the user’s vision. Because 15x magnification makes hand shake more noticeable, the tripod-adaptable design is especially valuable here, turning the Diamondback HD 15x56 into a strong choice for prolonged hunting observation, hillside scanning, and static wildlife watching.

About Vortex

Vortex traces its roots to a Wild Birds Unlimited store opened by the Hamilton family in Madison, Wisconsin, in 1986. The Vortex brand entered the sport optics market in 2002, and the company is now headquartered in Barneveld, Wisconsin. It is employee-owned and operated and focuses on sport optics for hunting, shooting, and outdoor use.

The company’s catalog covers binoculars, riflescopes, spotting scopes, laser rangefinders, and red dots, with established product families such as Razor, Viper, and Kaibab. Vortex has also expanded into more advanced aiming and ballistic technologies, including tools powered by GeoBallistics. In 2022, the company was selected to produce and deliver fire-control systems for the U.S. Army’s Next Generation Squad Weapons program, reflecting the depth of its optics and aiming-systems expertise across both sporting and professional applications.

Main Features

• Magnification: 15.00 x
• Objective lens diameter: 56.00 mm
• Prism type: Roof - Schmidt/Pechan
• Field of view: 76.60 m/1000m
• Field of view (angular): 4.36 °
• Apparent field of view: 65.40 °
• Exit pupil: 3.70 mm
• Eye relief: 15.60 mm
• Close focus: 4.20 m
• Lens coating: Fully Multicoated
• Focusing system: Central
• Diopter adjustment: Right eye-piece
• Interpupillary distance: 59.00 mm - 76.00 mm
• Housing material: Magnesium
• Length: 180.00 mm
• Width: 142.00 mm
• Weight: 990.00 g
• Waterproof: Yes
• Fogproof: Yes
• Tripod adaptable: Yes
• Body type: Single hinge

In the Box

• GlassPak™ Binocular Harness
• Comfort Neck Strap
• Tethered Objective Lens Covers
• Rainguard Eyepiece Cover
• Sport Tripod Adapter
• Lens Cloth