I have a damaged retina which resulted in my being VERY sentitive to flashes from cameras. Not too long ago at a jam session, this photographer asked permission of everyone in the room to take photos. I asked him not too, but he wouldn't take no for an answer. For the next few minututes, we would sneak out behind a post, or a corner and FLASH ... and it felt like a needle in my eye, again! I considered shooting him, but my gun was 30 miles away. bob(deckman)nelson