I met John at the Sheep Show in Reno many years ago. I bought his book on optics from him while there and he was good enough to autograph it. Some years later and for a brief time we had a, shall we say challenging exchange on the Campfire.That passed quickly I gained a greater respect for him not only as a knowledgeable writer but as a decent guy as well. Although we met that one time I consider him a friend: I call him every so often, he is most gracious!
