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Sports & Fitness
What Do the Numbers Mean?
Binoculars are referred to by two numbers; for example, 12 x 50. The first number is the magnification power. In this example, the object being viewed appears to be 12 times closer. The larger the magnification number, the closer your image will be.
The second number is the diameter of the objective lens in millimeters. The larger the lens, the more light enters the binocular, giving a crisp, clear picture. So, the larger your objective lens is, the clearer and brighter your image will be.
What Are My Choices?
Top Choice: Wide-Angle Binoculars
- 12x power magnification
- 50 mm diameter objective lens
- Insta-focus lever for rapid focusing
- Fold-down rubber eyecups
- Fully-coated optics for increased brightness
- Can be adapted to a tripod
- Weighs only 27 ounces
- Porro prism system
- Wide-angle field of view
- Includes case, neck strap and lens cloth
Binoculars are referred to by 2 numbers separated by an "x". The first number is the power (magnification). For example, on this 12 x 50 binocular, the object being viewed appears to be 12 times closer. The 2nd number is the diameter (in millimeters) of the objective (front) lens. The larger the objective lens, the more light that enters the binocular, making the image appear clearer and brighter.
What's the difference between a porro prism and a roof prism?
In porro-prism binoculars, the front lens is offset from the eyepiece, giving you a greater sense of depth and a wider field of view. In roof prism binoculars, the front lenses are in line with the eyepieces; this allows the binocular to have a smaller, more compact size.
Brands You Trust: Bushnell
Since Dave Bushnell founded the company in 1947, Bushnell has built its position as the market leader in sports optics through a combination of optical performance, innovation, reliability and value.
$48.00
© 2010 Wal-Mart Stores, Inc.
