
Follow these steps for this part of binocular repair:
- Get a screwdriver for opening tiny screws around the lens. You can get them at any optic repair shop
- Other things you’ll need: binocular manual, wiping cloth, kitchen tissue, a scale, and soap solution
- Locate the lens screws. In most of the cases, they’re at the top right corner of both of the lenses
- Remove the screws and then both of the lenses
- Clean the lenses and dry them out. Mark the central position on both of the lens cups
- Place the lenses at the center point after they’re dry
- Put the lenses back and adjust positions with tweezers
- Check if the lenses are in the exact place
- Tighten the screws
- Take the measuring scale and calculate the center of both sides. The repair is a success if the centers are equally distant from both of the sides
- Even if there’s a slight issue on the positioning, you can now easily follow these steps again
How to repair binoculars at home?
Steps to Repair Binoculars at Home
- Prism Fixation: Prisms are the top line parts of binoculars, and they need a special set of skills to fix them if they are not working.
- Lens Fixation: In this section, we’ll learn how to fix broken binoculars, their lenses especially. ...
- Focus Knob Fixation: Last but not least, the fixation of the focus adjustment knob from the list. ...
How to properly clean binoculars and telescopes?
Telescope retailers sell cheap, durable cases to store and protect eyepieces. Never touch the surface of a lens or mirror. The acids in skin oil can attack optical coatings over time. If you do leave a fingerprint on, say, a binocular lens, clean it off using the method described below. So much for vigilance — now to relax.
Can binoculars be repaired?
Zoom type binoculars can also repaired. Again pretty much every problem can be repaired from collimation problems to even modifying some binoculars to focus closer.
How to repair Celestron binoculars?
Here's how:
- Hang your + target or identify one.
- Get about 500 to 1000ft (or a little longer than a football field) away from the target, but on level with your target. ...
- Look at your target though the binocs and try your best to focus them.
- Attach your binoculars to your tripod making sure the binocs are level and plumb. ...

Can old binoculars be repaired?
Almost all makes of binoculars can be repaired including all the major brands like Swarovski, Steiner, Minox, Zeiss, Leitz, Leica, Canon, Nikon, Opticron, Bausch and Lomb, Avimo, Optolyth, Miyauchi, Fujinon etc etc. Zoom type binoculars can also repaired.
How do I fix my binocular eyepiece?
0:286:08Nikon Monarch Binocular Eyecup Repair How-to DIY - YouTubeYouTubeStart of suggested clipEnd of suggested clipFirst thing you're gonna do is take the broken eye cup and you're gonna remove it from the binocularMoreFirst thing you're gonna do is take the broken eye cup and you're gonna remove it from the binocular. And they're threaded onto the binoculars. But they're threaded opposite.
Can you fix cloudy binoculars?
Hold the binoculars upside down and use a lens cleaning pen's bristles to loosen any light material, then use some canned air to carefully blow off the loosened dirt. If using canned air, ensure the product provides short bursts of air and not use it too close as it can frost up the lens.
Why is one side of my binoculars blurry?
If the image is blurry when you look with your left eye, it means that you need to adjust the focusing ring, in the center of your binoculars. The focusing ring puts the object that you're looking at in focus while the diopter on the right eyepiece compensates for the differences between your left and right eye.
What do you do with old binoculars?
Donate your old optics to a local nature center or birding club, or to an organization such as the American Birding Association's Birder's Exchange, or to Optics for the Tropics. Both organizations send used (and sometimes new!) binoculars to researchers and educators in Latin America and the Caribbean.
Why am I seeing double out of my binoculars?
Double vision usually indicates that the binoculars are out of collimation. Now, what is collimation? It is the process of aligning all components in both lenses of binoculars to bring light to its best focus. If this process somehow gets interrupted, the binoculars register different images on each side.
Can you use rubbing alcohol to clean binoculars?
Clean your lenses only with the soft cloth that came with your binoculars or with a good lens cleaning cloth purchased in a camera store. I also like the paper lens cleaning towels sold by Lens Crafters. As for lens cleaning liquids, only use lens cleaners which are isopropyl alcohol based.
What is the best way to clean binoculars?
3:398:27How to Clean Your Binoculars - YouTubeYouTubeStart of suggested clipEnd of suggested clipSo what I have here is a microfiber cloth microfiber cloth is much better than some other materialsMoreSo what I have here is a microfiber cloth microfiber cloth is much better than some other materials because this is so soft it's designed for camera lenses for binoculars things like this. It's less
How do you remove water from binoculars?
In high humidity, water condensation or mold can accumulate on lens surfaces. If binoculars get wet, wipe them off with a dry cloth and store them in a cool, dry place.
How do you know if binoculars are out of collimation?
0:442:30Binocular collimation/alignment - YouTubeYouTubeStart of suggested clipEnd of suggested clipAnd what you can see is if one of those circles is higher than the other you know that thatMoreAnd what you can see is if one of those circles is higher than the other you know that that binocular is out of collimation.
Why can't I see through my binoculars?
If the width isn't set properly, your image will black out. Virtually all binoculars on the market have center focusing, in which a single knob or lever controls the focus for both eyepieces simultaneously.
How do you zero binoculars?
1:262:28How To Adjust Your Binoculars - YouTubeYouTubeStart of suggested clipEnd of suggested clipYou just focused in on and use the single diopter. - then get this site into focus. And once you'veMoreYou just focused in on and use the single diopter. - then get this site into focus. And once you've adjusted. And had both eyes focused. Now you can use just the main diopter.
How do you align binoculars at home?
7:3110:31How To Align Binoculars At Home - YouTubeYouTubeStart of suggested clipEnd of suggested clipBe down here so you'll screw it in it'll. Move in like this and then by unscrewing. The right handMoreBe down here so you'll screw it in it'll. Move in like this and then by unscrewing. The right hand screw. You'll move it diagonally up this way. Until the two images merge.
How do you collimate binoculars?
The collimation screw tilts the prism against the tension of the spring clip. Look through both eyepieces, and rotate each screw by no more than one eighth of a turn at a time to see what effect it has on the image, then return the screw to its original position.
What are the parts of a binocular?
Modern binoculars consist of two barrel chambers with an objective lens, eyepiece, and a pair of prisms inside. The prisms reflect and lengthen the light, while the objective lenses enhance and magnify images due to stereoscopic vision.
How do you tighten loose binoculars?
0:281:12Loose double hinge binoculars quick fix, by Northern Optics - YouTubeYouTubeStart of suggested clipEnd of suggested clipIn you'll notice some screws on either side just there. All you do is tighten them up that's it thenMoreIn you'll notice some screws on either side just there. All you do is tighten them up that's it then that tightens up which other side of the binoculars come loose. And then you can then push.
Binocular Maintenance, Repair, and Cleaning
If you follow these three disciplines, you will have any quality pair of binoculars working exactly as they were designed to for decades to come. Buying a pair of high-quality binoculars is not cheap, so you need to take care of them.
How To Repair Binoculars At Home: Lens, Prisms, Focus Knob
Lenses are the most important yet also the most delicate and part of a pair of binoculars. They are also the most exposed. Whenever your binoculars fall or you end up in unfavorable weather conditions, your lenses will suffer the most damage. Therefore, to keep your lenses in the best condition possible, take note of these precautionary measures…
How to Repair Binocular Lenses at Home?
If one or more of the lenses have moved from their original position and you are having trouble focusing, this can normally be easily repaired at home.
Fixing Prisms
The prism’s role is to combine the images coming from the two sides of a pair of binoculars in perfect alignment. This ensures that our brain receives only one image, not two. Therefore, if the prism alignment is only slightly out, our eyes will struggle to see a single clear image.
Fixing The Focusing Knob
Excessive use of the focus knob results in friction. If the grease used to ease the movement loses its viscosity over time, you will have trouble focusing through your binoculars. However, this problem can be repaired easily at home.
Looking for More Great Advice on Binoculars?
Then check out my informative article on Binocular Parts and their Functions.
Final Thoughts
You should now know everything you need to easily repair most binocular problems at home. Most of what I have covered is quite basic, but if you are in any way unsure of your ability to successfully complete any of these repairs, it is far better to take your binoculars to a professional and pay them to do the work for you.
Why do we use binoculars?
Using binoculars give you a super control to view objects that are located distance away from our vision. Although falling, pressing, colliding, and exposing the binocular to a certain condition can damage the parts of the device. This is why it imperative to gain additional knowledge on how you could fix your binoculars.
How far away should you hang binoculars?
The current magnification power will determine how far your target will appear. If you have binoculars that offer 5x, then go for 50 meters if it offers 10x then check out 100 meters.
How to tell if a prism is faulty?
Find out the fault of your prisms by aiming at a straight line or wire. If you observe the targeted line or wire appearing on different heights , then the prism is faulty.
How to clean a lens that is dirty?
Ensure the lenses are both clean before you fix each lens on its position. It best to use a dry piece of microfiber cloth or a professional kit for cleaning, but if you have a lens that is dirty and dusty, use water to clean them up. Once both lenses are clean and dried, resort to each of the centers of the lens cups.
What is decollimation on binoculars?
De-collimation is a defect that is caused by excessive usage and tilting of the screws. This makes it important to run a check to know if you were able to collimate the binocular perfectly.
Why do prisms produce dual images?
When a prism produces dual images due to dis-alignment, such a scenario is known as de-collimation. And this is caused mostly due to damages that occur in the binos. Although this condition cannot be prevented, but can be fixed. Doing this may appear tricky but not difficult.
Where to resort to after cleaning lenses?
Once both lenses are clean and dried, resort to each of the centers of the lens cups.
How to stabilize binoculars?
Depending on where you are, a tripod where the binoculars can be mounted on may also be used for stabilizing the unit while positioning yourself behind the binoculars. #3 Center in the field of view, focusing on the prominent structure. #4 Check horizontal collimation. Relax your eyes.
What is a binoculars?
by kawai. Binoculars are two telescopes linked together that create two separate images. To produce a crisp and perfectly merged 3-dimensional image, the path of the light (optical axis) through lenses and prisms inside the binoculars, needs to be in perfect parallel alignment. This is called “collimated”.
Why do my Porro binoculars lose collimation?
Rough handling may result in these two images getting misaligned. Mechanical impact like dropping the binoculars is the most common cause of Porro prism binoculars to lose collimation. Either one of the built-in prisms shifts or becomes dislodged, or the barrel hinge bends. Both can be the cause of misaligned images.
What happens if you miscollimate binoculars?
Mis-collimated binoculars will result in poorly defined, overlapping images or cat’s eye-shaped images in each eye piece. Any minor change in alignment or merging may result in subtle effects that can cause eye strain, headache, and fatigue. Most manufacturers allow users to repair binoculars alignment to some extent by themselves.
How to see if binoculars are disproportional?
Relax your eyes. Locate a distinct horizontal line in the structure. Slowly move your eyes away from the binoculars, about 4 inches, while continuing to observe the horizontal line. Look for any disproportion in the horizontal line on each lens.
How to tell if your left eye is open?
Look for any movement in the vertical line as you shift view. The image may move slightly to the left when your left eye is open and vice versa. Slight movements such as these are normal.
Can you fix binoculars alignment?
Most manufacturers allow users to repair binoculars alignment to some extent by themselves. Adjustable tilt setscrews are built on each barrel to adjust the prisms accordingly until images are back in alignment. Usually, a slight tweaking of the setscrews that tilt the prisms nearest the eyepieces should do the job. But, when in doubt, it’s best to get help rather than repairing binoculars alignment yourself. Not all repairs can be done on your own; fixing issues concerning the lenses should be done by the manufacturer or a professional.
What to do if binoculars are not under warranty?
That is why I highly recommend that in the first instance if your binocular is still under warranty that you first contact the manufacturer. Even if your binoculars are not under warranty it is worth contacting the makers, they in many cases will be able to help by suggesting where they recommend that you get the problem fixed.
Who does optical repair work for?
Optical Repairs have undertaken work for large organizations like the Australian Maritime Services, Australian Federal Police, the Queensland Government as well as many specialised hospitals and clinics associated with eye disorders both in Australia and around the world.
When was Opticalia founded?
Opticalia was founded in 2005 and specialises in the repair and service of photographic and specialist optics, like binoculars and scopes.
Where is optical repair located?
Optical Repairs is based in Brisbane, Queensland, Australia. This passionate company offers a comprehensive range of optical repairs and restores a wide variety of optical devices dating from the 1st and 2nd World War periods to current day optical equipment.
Can binoculars be re-sealed?
Once opened to be repaired, your waterproof binoculars can then even be re-sealed and purged again with zero grade nitrogen to ensure that they remain water and fogproof by some of the better repair companies.
Is it worth getting a new pair of binoculars repaired?
Unless you are really attached to a pair of binoculars (which I can totally understand), or if they were a cheap pair to begin with, it is sometimes just not worth having them repaired or serviced. If this is the case then it is time to get yourself a new pair of optics.
How to stabilize binoculars?
The binoculars should face the edifice horizontally. Stabilize the binoculars by mounting them on a binocular tripod. Make sure the positioning enables you to have a central field of view. 2.
How to tell if binoculars are in good condition?
Take your eyes about 4 inches apart from the binoculars but keep your eyes on that horizontal line. Look out to find if there’s any disproportionate horizontal line on any of the lenses. The line should be unbroken if the binocular is in good condition.
How to Repair the Focusing Knob?
When you use the focus knob too much, it creates friction and the knob becomes unusable. High-quality binoculars come with good knob material and rugged construction. So its better to do some research before buying the right binocular. But this knob issue is very common and you can easily repair this at home. Things you’ll need for this binocular repair are:
How to Repair the Lenses?
The lenses get damaged mostly when binocular harness is not used and binoculars fall out of hand or get hit by a sandstorm. Problems in the lenses also cause focus problems in them. Follow these steps for this part of binocular repair:
How to adjust binoculars with setscrews?
If your binocular is rubber-covered, you can use a 1mm screwdriver for prying open the cover gently and locate the setscrews. Now, adjust the setscrews using that same screwdriver.
How to repair monoculars?
Binoculars and monoculars are fundamentally the same so you can apply these techniques to repair monoculars as well. 1. Placing the Binocular. Take your binoculars out in the daylight. Always keep your binocular repair manual with you so you can look at it whenever in confusion.
What is collimation in binoculars?
Collimation refers to the perfect alignment of the prisms and the lenses. But oftentimes, this alignment gets disintegrated due to rough handling and as a result, ...
