Also known as field glasses, a pair of binoculars is an optical magnifying instrument made of two telescopes. They are made of lenses and prisms mounted inside metal and plastic frames. A three-dimensional image is produced to give a magnified image a true sense of depth.
What Do the Numbers on Binoculars Mean?
Binoculars usually have two set of numbers printed on them. These are magnification, and the size of the objective lenses used. For example, an 8x42 model makes subjects look 8x bigger while the diameter of its objective lenses is 42mm. Larger lenses capture more light and are better in low-light conditions.
For bird watching, observing nature or to observe sporting events, look for models with 8-12x magnification. These have fields of view wide enough to enjoy fast-moving action. Zoom binoculars have a unique design that allows adjustable magnification.
Features to Look for in Binoculars
Models with coated lenses produce brighter images. Lens coating prevents light scattering and reduces glare by cutting down on light reflection. Fog-proof lenses resist fogging in cold and humid conditions.
Build quality is also important. If you plan to spend time outdoors, look for a unit with a water-resistant, waterproof, or weather-resistant shell. A shockproof housing also protects your precious instrument if you accidentally drop it.
Carry a pair of binoculars to observe the wonders of nature in close detail wherever you go.