Specifications for Styrka 10x42mm S9 Roof Prism Binocular:
Magnification:
10x
Objective Lens Diameter:
42mm
Angular Field of View:
6.5 degrees
Linear Field of View:
341ft/114m@1000yds/m
Close Focus:
6.5ft / 2.0m
Eye Relief:
16mm
Exit Pupil:
4.2mm
Prism Type:
SK15
Prism Coatings:
Phase and Dielectric
Waterproof:
Waterproof (IPX7) and Nitrogen Purged
Relative Brightness:
17.6
Twilight Factor:
20.5
Interpupillary Distance:
58-74mm
Diopter ADJ Range:
±3
Weight:
31 oz
Dimensions:
6x5.36x2.37 inches
Features of Styrka 10x42mm S9 Roof Prism Binocular:
EXTRA-LOW DISPERSION (ED) - Objective lenses virtually eliminate chromatic aberration, and high-grade SK-15 prisms increase brightness and contrast. This optimized optical system enables prolonged use in the lowest-light conditions
PHASE AND DIELECTRIC COATED PRISMS - Advanced coatings dramatically increase light transmission through the prism system for bright, high-contrast images with better resolution, superior clarity and precise detail
SXL-MAX FULLY MULTI-COATED OPTICS GROUP - All lens surfaces are coated multiple times utilizing our proprietary SXL-MAX anti-reflective flat broadband coatings for maximum brightness and optimal color, sharpness and image contrast, while maximizing transmission across the entire visible light spectrum for true-to-nature color representation
OPEN BRIDGE DESIGN - Ergonomic design allows fingers to wrap around the barrels of the binocular for improved grip, steadiness and one-handed use
100 percent WATERPROOF - Fully sealed housing for performance in all conditions; submersion tested for 30 minutes in 1 meter (3.3 feet) of water
NITROGEN PURGED - Internal housing is purged of air and filled with dry nitrogen gas to prevent internal fogging
RUBBER ARMOR - Provides tough, durable external protection and a secure no-slip grip
TWIST-UP EYECUPS - Twist up or down for a custom fit to your eye, with or without glasses