Where are the collimation screws on Nikon Sporter 8X36 binos?
I dropped the binos and it caused the prisms to loose their collimation. Usually, the solution is to replace the binos, which I have, but these were very good and I'd like to take a run at collimating them myself. Just need help getting started.
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I ASSUME this device has collimation screws on the side of the barrel-- if it does not then the prism cannot be aligned.
If it does have collimation screws then hold the small monocular up to a lighted window and adjust the screws until you get a ROUND circle of light-- if you see a "catseye" light circle the prism is not collimated.
have asked about what is one of the most common binocular problems. I
hope that you don't mind if I paste my generic answer below as there's
no point in reinventing the wheel. If the answer does not provide a
solution then please state your exact Nikon Action model and add any extra
details which may help.
binoculars either have a bent or broken yoke assembly (the bit which
carries the eyepieces) or one or more prisms have came unseated.
first repair involves replacing the entire yoke assembly: the part is
expensive in comparison to the retail cost of a new pair of binoculars
and with labour charges on top is not usually a cost-effective repair
except on really high end expensive models and you can buy a brand new pair of Nikon Action binoculars for less than GBP£90.
The second repair is
straightforward and fairly quick for anyone with the right collimation
equipment, but the screw(s) need to be secured with thread-locking
hope you manage to use this information to fix your binoculars or at
least that it assists you to choose your next course of action.
Please take a moment to rate the free answer I have provided for you and
any testimonial which you might wish to add is always welcome!
There are another set of adjusting grub screws not just these! If you need to collimate them then you will need to adjust the correct ones to avoid what is known as "conditional collimation" where they are only good for people with the same IPD (interpupilary distance). If you feel confident that you can do this fine. But first is there any leaning field obvious? Using one side at a time and looking at a horizontal or vertical object (like a flagpole) show any lean when compared to the visual appearance? If it does then you need to send them to a service centre for correct alignment.
most prisms have coating on their air to glass surfaces. Chances are you have already degraded their original quality, even with the smoke gone. From past exp. you will be better of getting another bino...
Don't "unscrew" the binoculars. there are no user servicable parts inside. the collimnation adj screws are beneath the rubber boot just under where your index fingers rest when looking through the bino's. use a jewelers screwdriver to tease the boot up and stick a small nut or something in. then put the binos on a stable surface and play with the screws a bit while watching the images. you can get them pretty close this way.
well lets see..if i was you which im not i would take my dog for a nice walk on the ocean look at the sea and say bye bye binos.aaah the lobsters and crabs will have a nice time trying to get a single image.ok if you really want to have them fixed. send them for an estimate to a good repair shop...that should only take about 5 weeks and cost you $30.00 for shipping and an estimate.and they only cost $20.00
What you see is fungus . It comes off very easily BUT if allowed to grow it will damage coating and glass because the organism releases hydrofluoric acid. So the key is to clean as soon as possible.
You can do this your self but be careful around the prisms because even slight movement here will upset your collimation ( will get 'double image')and then you will need to have your nbinocs aligned properly.