Bushnell Powerview 7-21x40mm Black Zoom Binoculars

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The Bushnell 7-21x40 Powerview Zoom Binocular is a standard size porro prism binocular which provides versatility, a great sense of depth, and particularly bright viewing at its lower magnifications.  The focusing system is a lever instead of a traditional wheel, which many users find to be faster than other designs.  It also uses a simple lever on the right side of the unit to adjust the magnification.  This Powerview Zoom can provide easy viewing in low light or on an unsteady platform such as a boat when used at its lowest magnification.

A versatile zooming porro prism binocular with a 3.3-5.5° viewing angle range
Multi-coated optics for superior light transmission
Non-slip rubber armor absorbs shock while providing a firm grip
Contemporary styling
Focusing done with a lever instead of a dial/wheel
Fold-down type rubber eyecups


Prism Type Porro
Magnification 7x
Objective Lens Diameter 40 mm
Angle of View 7x: 5.5°
21x: 3.3°
Field-of-View 7x: 288' @ 1000 yd / 95.62 m @ 1000 m
21x: 172' @ 1000 yd / 57.10 m @ 1000 m
Minimum Focus Distance 20.01' / 6.1 m
Exit Pupil Diameter 7x: 5.7  mm
21x: 1.9  mm
Eye Relief 9  mm
Interpupillary Adjustment Not Specified By Manufacturer
Dioptric Correction Not Specified By Manufacturer
Focus Type Center
Tripod Mount None
Dimensions 6.30 x 2.36 x 3.46" / 16.00 x 5.99 x 8.79  cm
Weight 25.01 oz / 709 g

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