How to Clean Binoculars Inside

Binoculars are not cheap, so completing essential maintenance on them is essential if you want your investment to last. As binoculars are most commonly used outside, in lots of different weather conditions, it is incredibly important that you clean them regularly. If you do not upkeep the maintenance, then your binoculars will become damaged, and you will be unable to use them. 

When you think about cleaning your binoculars, then you probably only think about cleaning the exterior of your binoculars. By this, we mean the casing and the glass that makes up the lenses. But, it is also very important that you clean the inside of your binoculars too. You might not expect it, but it is actually very surprising how much dirt and debris can get inside your binoculars. 

So, if you are reading this and thinking “I really need to clean my binoculars”, then you are in the right place. In this guide, we’re telling you absolutely everything you need to know about how to clean binoculars inside. With no further ado, let’s get started. 

Why would you clean Binoculars?

As we have said, the main reason why you should clean your binoculars is to upkeep the maintenance on this piece of equipment. Binoculars aren’t cheap, and they are very complex, so if you were to not clean it, then you could be causing irreversible damage to your binoculars.

For example, if water were to accidentally get into the inside of your binoculars, and this went unnoticed, then it could lead to rust and corrosion inside your binoculars. 

However, this isn’t the only reason why you should clean your binoculars. The other reason why you should clean your binoculars is to ensure that they are always hygienic to use. When you use your binoculars outdoors, they will become covered in dust, dirt, and even dead bugs.

So, if you do not wash them, then your binoculars could quickly become very unhygienic to use. So, if you want to keep your health and safety as a top priority, you should clean your binoculars regularly. 

But, we are talking specifically about cleaning the inside of your binoculars. So, why would you do that? Well, the most obvious reason is to allow you to use your binoculars as usual.

If dirt gets inside your binoculars, then it is going to inhibit their ability to do their job, and affect the image that you see when you look through them. For example, if dirt has gotten onto the lens of your binoculars, then this could cause the image that you see to become blurry and unfocused.

This is why it is very important that you clean your binoculars regularly, both outside and inside. 

Things you Will Need

Before you begin cleaning your binoculars, you will need to gather some essential materials. When it comes to cleaning anything, preparation is key if you want the process to be as stress-free as possible. So, here’s a handy checklist of things to gather before you get started. 

To clean the inside of your binoculars, you will need:

  • A Binocular Cleaning Kit (available from most binocular stores)
  • Air blaster or Squeeze ball (available from most binocular stores)
  • Lens Cleaner Solution (available from most binocular stores)
  • Microfiber Cloth (available from most grocery stores)
  • Lens pen (available from most binocular stores)

Once you have gathered all of these pieces of equipment, you should grab your binoculars as you are ready to begin cleaning them. 

How to Clean Binoculars Inside: A Step-by-Step Guide

After you have gathered all the above tools, then you are ready to start cleaning your binoculars. This process will not take a very long time, and is easy enough as long as you follow this step-by-step guide. 

Step One: Remove All Dust

To begin with, you first need to remove all the dust off of the surface and interior of your binoculars. As we have said, it is surprising the amount of dirt and debris that can coat your binoculars, and you might not notice how bad it is until you go to clean them. 

The easiest way to remove all the dust off of your binoculars is to use air. So, you should use your squeeze ball or air blaster to do this. You should spray the exterior of your binoculars with the air blaster, then move onto the lenses of your binoculars.

Inside your binoculars, you will be able to access the lenses, so you should next take the air blaster and spray the glass. It is often difficult to see the dust that you are trying to blow away, so you should blast the glass for about one minute. 

Step Two: Use your Lens Pen

Next, you should take your lens pen, and continue removing the dust from the lenses. Lens pens have a very soft brush that will remove any dust that the air blaster has missed.

You should work on the same areas of the binoculars that you worked on in step one. Only once you are confident that there is no dust left should you move onto step three. 

Step Three: Wipe the Lenses

Once that is done, you should take your microfiber cloth and lens cleaner solution and begin to wipe the lenses. It is important that you use a microfiber cloth, as this material is very soft, ensuring that no damage will occur to the lenses during the cleaning process. This combined with the lens cleaner will ensure that no dirt remains on the binoculars. 

Step Four: Repeat the Process

Once you have cleaned both the inside and the outside of your one lens, you should then repeat the process with the second lens of your binoculars. After you have cleaned both lenses, close up your binoculars, and then they will be ready to use.


In short, this has been a complete guide to how to clean the inside of your binoculars, So, if you want to clean the inside of your binoculars then follow this guide to find out how.