Why do binoculars get moisture? 4 tips how to get water out of binoculars

People who love hunting, birding, traveling and many other activities love binoculars but they never know how to get water out of binoculars. When stored in poor conditions, binoculars can sometimes perform worse. Water and moisture are two of the deadliest enemies of binoculars. The below article will help users in figuring out how to get water out of binoculars.

Two main reasons why binoculars get moisture

Air Moisture Causes Condensation

Temperature is a significant component that can lead to condensation within binoculars. When it’s cold outside, the air can’t contain as much moisture as it can when it’s warm. So, if wet air comes into contact with a cold surface, like the lens of your binoculars, the moisture may condense and gather on the glass.

how to get water out of binoculars
how to get water out of binoculars

Breathing-Related Condensation

In reality, you are exhaling water vapor into the air whenever you breathe into a cold surface, such as a pair of binoculars. This holds regardless of the weather; it only occurs a little more quickly in colder conditions. Therefore, condensation may form on your optics if you don’t wipe away the moisture.

Because binoculars are frequently used in humid environments, such as on boats and in rainforests, they are vulnerable to possible moisture damage. Given that air is the primary transporter of water vapor, the optical housing would get significantly moistened. When subjected to abrupt drops in temperature, the contained moisture begins to condense on the interior surfaces of the eyepieces, objective lenses, and chassis walls. Not everyone is capable of reaching inside the binoculars and wiping off too much moisture on their own. The moisture on the lenses gradually takes on the appearance of fog and stops light from flowing through them. The image seen via such binoculars is hazy, and repeated usage might harm your eyesight.

Most binocular lenses typically become fogged up like glasses and develop a layer of condensation on them after being exposed to a significant temperature difference, a very humid environment, or even while using them on a rainy day.  Fogging them up exposes them to the possibility of fungus growing within, which might harm their quality in the long run. This can over time result in a film of rust forming within older binoculars whose bodies are composed of metal, there shouldn’t be any chance of rust developing if your binoculars are composed of metal, and nitrogen-purged cannot confirm nor deny it in the long term.

How to get water out of binoculars

Dry out naturally

When you discover that your binoculars contain water, the simplest course of action is to keep them for a few days in a warm, dry environment. To avoid having to perform further measures, the warmth should absorb all of the moisture. You should consider keeping your binoculars in a cabinet for storage or next to a heater. Just watch out that it doesn’t become too hot because that might damage the glass or plastic components of your binoculars.

After a few days, take the binoculars out of the warm location and check the interiors to determine whether they are still foggy or difficult to see through. You can now put the binoculars aside if it appears that all of the moisture has evaporated.

Use a desiccant

Desiccants are excellent moisture absorbers for a variety of items, but they are especially useful for optical equipment like scopes and binoculars. Therefore, you may put your binoculars in an airtight container with a few commercial desiccants if you’re still finding moisture inside of them. For a few days, let the binoculars alone after sealing the airtight container. Within this period, the desiccants ought to be able to take up all of the moisture. This container may be kept in your warm cupboard so that your binoculars can make use of both possibilities.

After a few days, take the binoculars out of the container and see if there’s any moisture left within them. Once all of the moisture has been removed and absorbed, you can store your binoculars back in their case until you need to use them again. 

To clear the binoculars of fog

Use only a delicate, dry microfiber cloth to remove any outside fogging. To prevent scratching the lens, wipe it down as frequently as you can using a soft cleaning cloth. As soon as the lens begins to fog, wipe it off to keep moisture from entering the lens.

While internal fog cleansing is far more difficult. But a towel cannot be used to wipe it off inside the binoculars. However, the following two techniques can be used to remove fogging from within the binoculars so they can be used again. 

Bring to the service center for repair

Bring your binoculars to well-known and important service facilities like Bushnell, Vortex, or Nickel if you have tried the methods I provided above and they are still unable to drain water. These servicing facilities will have the equipment, accessories, and knowledge necessary to fix your binoculars for you.

How to prevent bino from getting steam 

Preventing water from getting into binoculars

Take simple recommendations to stop moisture from entering binoculars’ lenses in the first place to avoid ever needing to clean them again. There are anti-fog treatments available that coat the lenses and stop them from fogging up as a result of moisture, including sprays, creams, wipes, and drops. Cleaning lenses often can also help keep fog from accumulating due to moisture, which can help keep it out of the binoculars entirely. As an alternative, binocular-specific sealants can keep anything outside from entering. When binoculars are older, this is very beneficial.

Let the glass adjust to the weather outside

Permit the glass to adapt to the surrounding temperature and humidity on its own. The use of binoculars should be encouraged after exposure to the environment. Although this approach can be effective, it is not the best choice. The glass will fog up if you put it close to your eyes, blast the heat on the way to the treestand, or put the binos in your jacket pocket.

Modify a few handling methods

One may avoid external fogging on the eyepieces of binoculars by making a few adjustments to how they are handled when it is chilly outside. Binocular fogging may be avoided using a variety of useful strategies. Although binoculars have frequently adjusted to the environment, body heat and warm breath can still create fogging.

If you need to keep the binoculars away from your body heat, use a tripod. Masks and other headgear, particularly those that cover the nose, might direct heat in the direction of the binoculars. Use binoculars as if you wore glasses if you don’t. For the greatest amount of eye comfort, fully retract the eyecups. In order to prevent steam buildup, this keeps the eyes farther away from the eyepieces.

Using specific gels or chemicals to prevent fogging of binocular lenses

Anti-fog treatments are widely available on the market, but be careful what you buy. Although anti-fog treatments can significantly reduce the amount of misting on your binoculars’ outer lenses, they usually don’t last very long and don’t affect condensation inside the lenses, wherever that condensation may be. Anti-Fog Spray can be applied on most wet and dry lenses. Just spray the lens, leave it on for a couple of minutes, then rub it in with a clean cloth. Rinsing the lens with water is optional. Special gels or products often apply to binocular lenses to avoid fogging up

Depending on the existing humidity level of the binoculars, you will have ways to get water out of binoculars and come with a number of alternatives for drying the binoculars.  The best way of knowing how to get water out of binoculars is to try to avoid this problem altogether by keeping your binoculars covered and clean while in use. However, there are some simple things you can do to remove excess moisture if it builds up.