I had 2 pair of armored binoculars that had been knocked out of alignment. Not real expensive ones (< $100) but still I hated to throw them away. On close inspection I noticed that under the armor or one pair there was a small screw that aligned the prisms. A small turn of the screw and they were back to perfect. Looking at the other pair, I guessed there was probably an alignment screw and carefully peeling back the armor found it. I got them aligned as well and glued back the armor. I now have 2 pair that are as good as new. I wish I had known I could do this before!
