If you are planning on taking your binoculars out to sea, you're going to want to make sure they are waterproof. Although a pair of fully waterproof binoculars will cost quite bit more than non-waterproof varieties, you will ultimately save money by not having to constantly replace them. Regular binoculars just aren't made to stand up to the sea spray and harsh conditions found on the ocean. At sea it is virtually impossible to keep your binoculars completely dry, and it takes only a small amount of moisture to cause mildewing inside the lenses, thus affecting your ability to see clearly through them.

Waterproof binoculars are not simply made of a water resistant material such as rubber. Instead, the design of the internal components actually makes the binoculars waterproof. A hermetically sealed binocular is considered waterproof, while a nitrogen-filled binocular is also fog-proof. These binoculars are always tested underwater prior to being sold. When buying a pair of waterproof binoculars you'll want to check the packaging to make sure that they are nitrogen-filled. This will ensure that your binoculars will stand up to ocean conditions without any negative side effects.

Don't simply rely on binoculars that look waterproof. Many models have a rubber exterior to prevent damage from accidentally bumping or dropping the binoculars. Complicating the issue is that many binoculars made for marine use are rubber-coated to provide a firmer grip for wet hands. The lenses must be sealed for the binocular to be waterproof, since most of the damage caused by water is done inside the lenses and prisms. If you suspect that your current binoculars may be mildewing, try looking through the wrong end, held a short distance from your eyes. You should be able to see if the clarity of the binocular has been compromised.

Key words:   Waterproof Binoculars  ,  Regular binoculars  , binoculars
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