DESCRIPTION
The Vanguard 10x42 Spirit ED Binocular is their lightest roof prism model with fully multicoated ED glass lenses. The rubber armored housing comes in at an impressive 22.6 oz, but doesn't skimp at all upon the optics.  This is the choice for someone who values low weight and high optical quality over a more metal-based housing which weighs more but can be knocked around a bit.
 
Unlike a hunter's binocular, Vanguard has given the Spirit multicoatings which target the green color spectrum, for enhanced nature observation.  The waterproof and fogproof Spirit has moisture-dispersing external coatings which help to shed precipitation quickly.
 
As a 10x42, this Spirit binocular provides a high degree of magnification in a relatively compact device.  The 6° viewing angle is comfortably wide enough for distant scanning of shorebirds and unapproachable wildlife, and the eye relief of 16mm allows most users a view of the binocular's entire field.
 
Optical Performance:
 
10x magnification
 
42mm objective lenses
 
BAK4 compact roof prisms
 
Extra low-dispersion (ED) glass elements reduces chromatic and spherical aberration to produce crisp and clear high-contrast images with accurate color representation across the entire field of view without distortion.
 
V-Max anti-reflection fully multi-coated optics improves light transmission, color rendition, and contrast
 
Phase-correcting prism coatings reduces internal light diffraction to further improve contrast and overall image sharpness
 
Wide 60° apparent viewing angle
 
Comfortable 16mm eye relief
 
Wide 4.2mm exit pupil
 
Use and Handling:
 
Closed-bridge configuration
 
Large knurled center focusing knob
 
±4 right-eye dioptric correction
 
Two-stage twist-up rubber eyecups for comfortable use with or without eyewear
 
Tripod mountable with optional adapter
 
Construction Details:
 
Lightweight and strong magnesium alloy chassis
 
Protective rubber armoring provides a slip-resistant grip
 
Nitrogen-filled for water and fog proof performance
 
Weight: 22.6 ounces
 
SPECIFICATIONS
Prism Type
Roof
Magnification
10x
Objective Lens Diameter
42 mm
Angle of View
6.0° (Actual)
Field of View
315' @ 1000 yd / 105 m @ 1000 m
Minimum Focus Distance
9.2' / 2.8 m
Exit Pupil Diameter
4.2 mm
Eye Relief
16 mm
Dioptric Correction
±4
Focus Type
Center
Tripod Mount
Yes
Dimensions
5.7 x 4.9" / 14.5 x 12.5 cm
Weight
22.6 oz / 640.0 g
Package Weight
2.5 lb
Box Dimensions (LxWxH)
9 x 7 x 3"