I bought a set of Nikon ATB's about two years ago for a price in the low $200's. They worked well until the one year mark when all the "armor" coating started peeling off the binocular's body. I sent it back to Nikon for their warranty repair. They notified me that the coating was not covered by their "warranty" and I had to send them money to repair it and also to cover the return shipping to me. I paid up and have had the new ones about a year. On one of the objective lenses there is a bunch of bubble-appearing material over one-half of the new objective lens. It seems to still work OK and since I didn't want to pay for more of their "warranty" service I just use it the way it is.
One other thing I didn't expect was that this set of ATB binocs was made in China.
So needless to say I am not enthused about Nikon products. Good luck.
best wishes- oldandslow