In a message dated 3/7/2005 6:17:35 P.M. US Mountain Standard Time, acrayon@xxxxxxxxxxxxxx writes: The only problem I foresee is someone taking an astrophoto or astroimage of the same area the laser is pointed. How much will it interfere with the image? I don't know. Does it take only a fraction of a second, a few seconds or is there no problem at all? Any ideas, comments or experience here? I think the only way to truly find out is through experimentation. I doubt if any important astrophotography is going on at the AAMM. If I was seriously imaging I would pick a location with a smaller number of attendees. Vekol or Sentinel. So I'll attempt to capture a laser beam in an astrophoto. I'll make the range anywhere from 1 to 30 seconds. (does anyone use a laser pointer at any particular object more than 30 seconds?) Do you think the beam would be more noticeable in a wide field or narrow? I would think wide but I'll try both. I'm working out the bugs with my DSI anyway so I might as well have a little fun with it in the process. Jeff Vandecar -- See message header for info on list archives or unsubscribing, and please send personal replies to the author, not the list.