Read what Bird Watchers Digest has to say about the Vortex Viper HD 8x42.

The Viper HDs significantly step up their game in 2011 with HD (High Density) extra-low dispersion glass. One look is all you'll need to appreciate why the Viper is an award-winning bino.

Add XR fully multi-coated lenses and you have a bino that delivers bright, crisp details with impressive resolution and color fidelity. Rugged, compact and lightweight�one of the lightest mid-size binos available.

It's no mystery why the Vipers are an award-winner. Our Viper HD binoculars pack in all the features you need for a successful birding adventure. See what premium optics can do for you!

Vortex VIP Warranty - If any Vortex Optics product should ever require service, Vortex will repair or replace the product absolutely free - no matter the cause!

CONSTRUCTION FEATURES:

�Roof Prisms - Valued for greater durability and a more compact size.
�Waterproof - Optics are sealed with O-rings to prevent moisture, dust, and debris from getting inside the binocular.
�Fogproof - Argon gas purging guarantees superior fogproof and waterproof performance.
�Rubber Armor - Provides a secure, non-slip grip, and durable external protection.
�ArmorTek - Ultra-hard, scratch-resistant coating protects exterior lenses from scratches, oil and dirt.

CONVENIENCE FEATURES:

�Twist Eyecups - Twist up and down to precise, intermediate settings to maximize custom fit for comfortable viewing with or without eyeglasses.
�Center Focus Wheel - Adjusts the focus of both binocular barrels at the same time.
�Locking Diopter - Adjusts for differences in a user's eyes. Located on the right eyepiece.
�Tripod Adaptable - Compatible with a tripod adapter, allowing use on a tripod or car window mount.

SELECT FROM 2 MODELS:

Viper HD 8x32 Roof Prism Binocular
�Magnification 8 x
�Objective Lens Diameter 32 mm
�Eye Relief 16 mm
�Exit Pupil 4 mm
�Linear Field of View 400 feet/1000 yards
�Angular Field Of View 7.6 degrees
�Close Focus 3 feet
�Interpupillary Distance 59-75 mm
�Height 4.9 inches
�Width 4.8 inches
�Weight 20.6 ounces

Viper HD 8x42 Roof Prism Binocular
�Magnification 8 x
�Objective Lens Diameter 42 mm
�Eye Relief 20 mm
�Exit Pupil 5.3 mm
�Linear Field of View 347 feet/1000 yards
�Angular Field Of View 6.6 degrees
�Close Focus 5.1 feet
�Interpupillary Distance 59-75 mm
�Height 5.8 inches
�Width 5.3 inches
�Weight 24.2 ounces