Since it was a sniper accessory I figured this would be the right place to post it. Anyways, some time ago I bought this nice soviet sniper binocular and ever since had this issue that I never could figure out. The problem is that the sight picture from one monocular overlapping the sight picture of the other one when looking with both eyes. Mosin sniper manual says that when it happens, the user needs to close monoculars and then slowly start spreading them until the sight picture from both tubes becomes one. When that happens, the distance is considered correct and should be remembered by whoever uses it. Different person might need to readjust for his/hers eyes. No matter how much I played with spreading and closing it the vision is still overlapping and doubled as a result. The image is perfect if I look with one eye only thru either ocular. Any suggestions what it might be?