The other night I was watching some old b&w 8mm movies that my father took back in the ’50s. Yes, the old projector still runs after all these years. Can you say American Made. Bet you can’t find an 8-track player that still runs, or an 8-track tape that would play if you could find one. But I digress… One thing I noticed while watching the old movies was that in almost every reel he would point the camera at his face to see if it was running. Fast forward 50 years and now I see Uncle Fester looking into his digital still camera to see if it’s working… I’m curious – what exactly do you see that tells you that it’s working, and just because it worked on the last photo, how do you know that it works when you point it away from your face???? Inquiring minds want to know.