Archived posting to the Leica Users Group, 2001/07/30
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Juan J. Buhler writes: > Sometimes they keep a faint glow for a few minutes. I've never seen this. I suppose some of the old-style lamps with heated filaments might continue to glow for an instant. Some phosphors might glow briefly as well. I can't remember actually observing anything like this, however, and it hardly seems like it would be any worse than the glow from an incandescent lamp. It sounds like an urban legend, actually, like the old myth about babies being blinded if you take a picture of them with a flash. When you turn off an incandescent lamp (_especially_ halogen lamps), it radiates in the infrared for a few minutes, too. Wouldn't that be just as much a problem?