Fog-proof, waterproof and fully multi-coated lenses are features that you should look for in a pair of binoculars. If you can't afford all these high quality features, realize that these three features will be found in the best binoculars.

Fogged lenses can be a problem for those of us who like to use their binoculars in cold weather, like at a football game or while out hunting in the fall. This is the time that binoculars can get fogged up inside. Lenses fog up when moisture enters the binoculars and condenses on the lenses. If you're not going to use your binoculars in cold weather, then fog-proof binoculars aren't important to you.

Fog-proof 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.

It must be easier for the manufacturer to produce straight-line roof prism binoculars that are nitrogen-filled than the Porro prism design. Over half of the roof prism binoculars are nitrogen-filled, while barely one-fifth of the Porro prism binoculars are fog-proof. Nitrogen-filled binoculars are a mark of quality. Always go for quality when you can afford it.

Binoculars that are waterproof will withstand submersion into water, but water-resistant binoculars won't. You can get the water-resistant type wet, but don't drop them overboard or otherwise submerge them. This includes having them drop out of your pocket into a pail of water while washing the car. Trust me, I know!

You may have to pay a little extra for waterproof binoculars, so you'll have to weigh the pros and cons for your situation. How likely are you to dunk your binoculars? If you said very likely (like me!) go ahead and spend a little bit more. After all, how often do you buy binoculars? 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.

Another feature that speaks to the quality of binoculars are the various lens coatings. One can buy binoculars with fully coated lenses, multi-coated lenses, or fully multi-coated lenses. It has been found that special optical coatings produced better color accuracy and improved brightness and contrast.

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.
 

Key words: Waterproof Binoculars,  Binoculars
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