Binoculars Brunton

ECHO Porro Prism Binocular - BaK-4, 10x50 magnification, 849g, Grey Echo versatility in a classic design that yields a larger field of view with no distortion. Large objective optics produces a bright, sharp image and true color. The armored aluminum frame is waterproof and fog proof -- and stays that way through rugged use. Choice of 7X, 8X or 10X models let you pick your preference.

- BaK-4 prism glass
- Full multi-coating
- Twist-up eye relief system
- Waterproof
- Nitrogen filled/fogproof
- Tripod/monopod compatible
- Power: 7X, 8X, 10X
- Objective diameter: 50mm (50 mm = 0'1-31/32"), 45mm (45 mm = 0'1-25/32"), 50mm (50 mm = 0'1-31/32")
- Eye relief: 19mm (19 mm = 0'0-24/32"), 24mm (24 mm = 0'0-30/32"), 20mm (20 mm = 0'0-25/32")
- Exit pupil: 7.1mm (7.1 mm = 0'0-9/32"), 5.6mm (5.6 mm = 0'0-7/32"), 4.6mm (4.6 mm = 0'0-6/32")
- Field of view: 367ft (367 ft = 112 m), 435 ft (435 ft = 133 m), 330ft (330 ft = 101 m) @ 1,000 yds
- Prism coating: AL
- Weight: 35oz (35 oz = 990 g), 32 oz (32 oz = 906 g), 30oz (30 oz = 849 g)
- Close focus : 13ft (13 ft = 3.96 m),10 ft (10 ft = 3.05 m), 16.5ft (16.5 ft = 5.03 m)