How to Repair Binoculars Double Vision?
Have you ever had double vision when using your binoculars? It is a frustrating situation that is often caused by the binoculars not being properly aligned. Luckily, there are some easy steps to fix this issue. If you experience double vision with your binoculars, it simply means that it is time to adjust. Below are some tips that will help fix and improve the double vision problem.
Important Things to Know
Just because you realized your binoculars have a double vision problem doesn’t mean you should immediately attempt to pull your binoculars apart. If you do something like messing with the binoculars collimation, you may just be setting yourself up for future problems.
Also, before you attempt to fix your binoculars yourself, check to see whether your binoculars are under warranty. Most companies offer years’ worth of free collimation adjustments as long as you are within the warranty period. You should also note that some companies will void your warranty if you decide to tamper with the collimation yourself.
Step by Step Guide
- The first step in fixing double vision is to gather the necessary tools. Depending on your brand of binoculars, you will need a small screwdriver, preferably a Phillips head or flathead. You will also want to have a cleaning cloth and lens cleaner with you throughout the process. You may also need a tripod and an adapter.
- Before you start tinkering around in there, make sure that you are working somewhere clean and out of direct sunlight. If any dirt gets into the lenses, you’ll have to go through a painstaking experience to clean it out.
- Find the adjustment screws. For the most part, binoculars have two adjustment screws located on opposite sides of each other. Some manufacturers like to hide the adjustment screws behind plastic casings or some adhesive. It is best to work with one screw before moving onto the next. If you still cannot find the screws, check the user manual that came with the binoculars.
- Next, you want to find a target. Most experts will recommend using a building or a lake. Still, the most effective way for beginners to fix double vision is to focus on a lone star. A star is bright enough to see and small enough to allow for accurate vision adjustment.
- If you have a tripod, set it up and mount the binoculars. Ensure you line it up to the center as accurately as you can. Defocus one of the lenses so that you have one clear lens and one blurry one.
- Start adjusting the horizontal screws first. You want to ensure that you make adjustments of about 1/8th of a turn each time. Adjust one screw halfway, then adjust the second screw to bring it the rest of the way.
- Adjust the vertical screws and go through the same steps as above.
- After making the adjustments, you now want to refocus the lens that you unfocused previously.
If done correctly and following the steps outlined above, you should easily and quickly fix the double vision problem.