Archived posting to the Leica Users Group, 1997/03/29
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Dr. Michael Volow wrote: <<<<<I would think that in dim light you would want increased local contrast (i.e. tonal separation) between adjacent tonal values, but reduced overall contrast between very bright and dim areas (or at least less flare from the bright areas.)>>>>>> Hello Michael, You are right on both counts, but I'm not sure it can be covered by the same lens within the same frame. If you were to have high contrast lighting conditions on the one hand, then the Noctilux will ease the contrast by "seeing into" the shadows, thus softening the contrast. But if you have a low contrast area within the same frame it isn't likely to increase the contrast, but more than likely let you "see more" details within that area. I guess in that sense, better tonal separation, but not increasing the contrast. Not sure if this is too clear. :) If we were looking at photo situations it probably could be much easier to illustrate . Too bad we are not looking at my book "This is Our Work. The Legacy of Sir William Osler." Where examples from the OR and other medical related situations illustrate the Noctilux in action. Have a peek at the web page for the book. http://www.islandnet.com/~tedgrant ted Victoria, Canada http://www.islandnet.com/~tedgrant