Waterproof Binoculars Are More Pricey, But Are Worth It
Most binoculars 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 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.
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.
These binoculars resist getting fogged up inside because they are sealed off from the atmosphere outside and the inside is filled with nitrogen. Nitrogen gas provides a constant atmosphere in the sealed tubes of the binoculars. Because each tube is sealed, the nitrogen gas won’t escape and moisture won’t get in. Your lenses won’t get foggy.
Waterproof binoculars cost a little more, so you’ll have to weigh the pros and cons for your situation. If you’re comparing a few different models, take into consideration that being waterproof is a plus, and maybe a deciding factor for you if you’re into boating or fishing or just being around water.
Manufacturers have gone from using a single coating of some of the optics to having multiple special coatings for each piece of glass, lens and prism. This takes more time and care at the factory, and so the more coatings the better and probably the higher price binoculars. Get the best quality optics that you can afford and you won’t regret it. Objects will appear bright with optimal resolution, fine contrast and color accuracy.
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