Binoculars are two mirror-symmetrical and identical telescopes mounted side-by-side and aligned to point accurately in the same direction, permitting two-eye viewing. When purchasing a pair of binoculars you want to know that you are purchasing the best possible pair.
Nitrogen-filled binoculars resist water, rain, and moisture. You can extend the life of these coatings by using lens cleaner before and after each use. Using binoculars, the avid birdwatcher can be sure he really saw the rare Bonaparte s Nightjar or Pink-Headed Fruit Dove, not just another sparrow or bluebird.
When night-vision binoculars first came on the market they were very expensive status symbols. Cost is another factor to consider. All things you see through a night binocular appear green, because you don't look directly at the objects but at their image on a phosphor screen.
While the Leupold 10x50mm tactical binoculars are great for tactical operations, it is no loser to hunting and shooting sports and bird watching and observations. Mars and Venus on the horizon are a whole different picture when you can magnify your own vision. Of course, the larger lenses tend to gather more light.
There is nothing like owning your own telescope, and being able to direct it through the sky to uncover a sea of beauty. In my opinion, one should be prepare to purchase a binocular worthy of your endeavors.
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