Archived posting to the Leica Users Group, 1996/07/09
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Dick, There is a 2x2 slide made that has a thermometer built into it. You can watch the numbers rise while it is being projected onto the screen. These used to be available on a regular basis from large firms that rent projection and sound equipment for meetings. I never thought it was a Leitz item. Like alignment slides with parallel lines and boxes, such slides are for setting up large shows and particularly multi-projector shows. Fred Ward