Vortex Viper HD 8x42 Binocular

Key Features

• 8x magnification with 42mm objective lenses
• Wide 7.8° field of view covering approx. 136m at 1,000m
• Lightweight approx. 695g open-hinge construction
• Approx. 1.83m close focus for nearby subjects
• 18mm eye relief with adjustable eyecups
• HD Optical System for resolution and colour fidelity
• XR Plus and dielectric prism coatings
• Argon purged, waterproof, fogproof and tripod adaptable

Vortex Viper HD 8x42 Binocular Summary

The 8x42 is the widest-viewing and lightest model in the Viper HD family, favouring a broad view over the greater subject enlargement of the 10x and 12x configurations. This makes it particularly relevant for birdwatching and wildlife observation, while its approximately 1.83m close focus extends viewing to nearby subjects.

Its 18mm eye relief is also the longest in the four-model range, providing additional viewing clearance compared with the higher-magnification versions.

In More Detail

HD Optics and Prism Coatings

The HD Optical System uses selected glass elements to reduce chromatic aberration while maintaining resolution, colour fidelity, edge-to-edge sharpness and light transmission. XR Plus anti-reflective coatings are applied to air-to-glass surfaces to maximise light transmission and support clarity in lower light.

Dielectric Prism Coatings use multiple layers to maintain brightness and colour accuracy, while Phase Correction coatings improve resolution and contrast through the roof-prism system.  

Open-Hinge Construction and Outdoor Protection

True Open Hinge construction reduces overall weight and bulk while providing space around the barrels for handling. Rubber armour adds a secure exterior grip and additional protection.

Exposed lens surfaces feature ArmorTek, an ultra-hard coating that helps protect against scratches, oil and dirt. Argon-gas purging and O-ring sealing provide waterproof and fogproof performance, while the binoculars are also constructed for impact resistance.  

Focus, Eyecups and Tripod Support

A central focus wheel adjusts both barrels simultaneously, while a locking diopter on the right eyepiece compensates for differences between the user’s eyes. Twist-adjustable eyecups accommodate viewing with or without glasses.

The binoculars are tripod adaptable with a compatible adapter, providing the option of additional support during prolonged observation and with the higher-magnification configurations.

8x42 for a Wider View

Compared with the 10x42, the 8x42 reduces subject magnification but increases field of view from approximately 114m to 136m at 1,000m. Eye relief also increases from 17mm to 18mm, while both configurations share the same approximately 1.83m close-focus distance and similarly compact dimensions.

The wider view makes the 8x42 particularly useful for finding and following birds and other moving wildlife, while the 10x42 provides greater enlargement when observing more distant subjects.

Which Viper HD binoculars should I choose?

Frequently asked questions

Why would I choose these instead of Diamondback HD?

Viper HD steps up with XR Plus anti-reflective coatings and a more premium optical specification, while retaining dielectric prism coatings and Phase Correction. It suits enthusiasts looking for greater optical refinement, whereas Diamondback HD provides more configurations and a more accessible route into these features.

Is it worth stepping up to Razor HD?

Razor HD adds further optical refinement including APO colour correction and sits considerably higher in the Vortex range. Viper HD makes sense for enthusiasts who want premium features without making the larger jump to Razor.

Specifications

What’s in the Box

• Vortex Viper HD 8x42 Binocular
• Rainguard Eyepiece Cover
• Tethered Objective Lens Covers
• Comfort Neck Strap
• GlassPak Binocular Harness
• Lens Cloth