Archived posting to the Leica Users Group, 2000/03/11
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]At 03:01 PM 3/11/00 +0800, claire wrote: > >Oh ...... I see........ that makes sense........ I gather that the Series 7 >polarizer is actually ONE piece of glass rather than the usual 2 rotating >pieces of glass. > >Am I correct ? Cos I haven't seen a Series 7 polariser before. > >Peace >TMLee > Polarizers are never TWO rotating pieces of glass. They are but ONE. Well... two pieces of glass with a polarizing film sandwiched between them. They are glued together. One unit. B+W makes a double polarizer. When you rotate one, it will block all light when the grids are at 90 degrees to each other. Jim