![]() ![]() ![]() If not removed, small particles of grit or dirt will scratch or damage the optics coatings. Done! I lost two tiny set screws, so I left all them out. When cleaning binoculars, firstly ‘blow’ on the lenses lightly or use an air puffer. The eyepiece needs to have the more curved faces pointing inward, and the object lens has the more curved face pointing to the target. Let me try orienting the lenses as it shows. Fastforward 80+ years and we're still doing it the same Typical, simple repair charges for alignment of binoculars run about 65. Ignore the lens, it is backwards and the other eyepiece lens isn’t shown. Binocular Repair We've been doing this since you were a kid In 1936 we began repairing handheld binoculars with an emphasis on quality and attention to detail. Retaining screw goes in first… Then this focus wheel… Lastly the moving eyepiece holders. Apply the UV light to let it cure! Put the prisims back in (they have little positioning posts that stick down) Screw the tube in. I put dry erase marker on the surfaces to check the fit (they only fit one way) Then I put a big gob of Norland #63 and pressed them together, wiping the excess off. for repairing, maintenance, and collimation of binoculars: M3, M7, M8, M9, M13. Decided to try gluing the chip back on with my Norland Optical Adhesive #63 and curing with UV. Home / MILITARY BINOCULAR REPAIR & REBULDING MANUAL FOR WWII BINOCULARS. Noticed one of the prisims had a chip missing, but the chip was still held in place by the mount. The slot was very narrow, and made of soft brass metal. ![]() Once any dirt or grit has been removed you can then clean the surface with a clean, lint free cloth. A screwdriver that fit better would have helped. When cleaning binoculars, firstly ‘blow’ on the lenses lightly or use an air puffer. I wasn’t sure I was going to remember how it went back together. Note to future self, keep track of lens orientation and don’t drop the little set screws! This is what I started with. Switched all the lenses front to back and reassembled and viola! Now the image looked good. Put it back together and everything looked terrible, very distorted. Everything went smoothly, except losing some of the tiny set screws, and forgetting which side of the lenses was front and back (found out yes this does matter). With that much money invested, I now felt like I HAD to get these things working again. I almost gave up and threw the binoculars away, but then on a whim I bought a bottle of Norland optical adhesive #63 from Edmund optics for like $35 to glue the two halves of the lens back together. It was held together with Canada Balsam that had yellowed, and I took it apart by placing it in boiling water for a few minutes then sliding the two pieces apart. One of the eyepiece double lenses had become impossible to see through. I bought these old binoculars for $12 years ago. Click on this image gallery to follow along with the exciting repair saga. ![]()
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