What brand do you think doesn't have issues? The first set of 15x56 Swaro SLC's I got I looked through and there was something wrong on the inside of one of the lens (can't recall if it was a fleck, hair, or scratch appearance anymore to be honest), I just exchanged them at the store. I'm not going to take possession of the faulty pair and deal with customer service (despite swaro customer service being solid), let the retailer deal with that. Stuff happens, I don't really blame swaro and I'm sure they took care of those binos, it just wasn't my problem to deal with when buying a brand new pair of binos imho. The pair I exchanged for have been great.