Roof Prism Binoculars

8x21

Model : BJ 2271B
Magnification : 8x
Obj.lensr : 21 mm
Field Angle : 7.5°
Product description: This series Binoculars in your pocket, pack, or glove box for quick glassing on the go.
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Key Features
● Lead and Arsenic-Free Eco-Glass
● Compact Roof Prism Design
● Antireflection Multicoated Optics
● Closed-Bridge Configuration
● Center Focus Wheel
● Fold-Down Rubber Eyecups
● Compact and Lightweight Design
Overview
This series Binoculars in your pocket, pack, or glove box for quick glassing on the go.
With their light weight and short length, you won't be bogged down when you're on the move.
The moderate magnification produces a generous field of view with true-to-life colors and sharp contrast.
Optical Performance

● Ideal for outdoor activities like hiking and bird watching, viewing sporting events and concerts, or general nature watching or sightseeing
● BK7 roof prisms maintain a compact form factor for easier handling
● Anti-reflection fully coated optics help to improve light transmission to keep views bright and clear and boost contrast and clarity
● Spacious 288-foot field of view at 1000 yards allows users to see large areas without having to move their head very much

Construction Details
● Subdued black color won't stand out in the forest or around civilization, or draw attention when you're using them
● Corrosion-proof plastic housing
● Rubberized ergonomic chassis design offers a comfortable and slip-resistant grip
● Compact design
● weight 170 g

Performance

Model	BJ 2271B
Specification	8x21mm
Magnification	8x
Objective Lens Diameter	21 mm
Angle of View	7.5°
Field of View	131 m @ 1000 m
Field of View	393 ft @1000 yd
Minimum Focus Distance	16.4 ft/ 5 m
Exit Pupil	2.6 mm
Eye Relief	11 mm
Diopter Adjustment	Yes / ±4
Focus Type	Center
Prism Type	Roof (BK7)
Lens Coating	Fully Multi
Eyecups	Fold-Down
Waterproof	No
Weight	170 g
Minimum Size	62x41x92 mm
Maximum Size	106X35X92 mm