Archived posting to the Leica Users Group, 1998/11/18
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Nathan, >>How can a lens transmit MORE information than is in the actual image?<< the MTF curve being above 100% doesn´t mean there is more information on the film than in the actual image. Remember the y-axis denotes relative contrast, so a value above 100% means that the contrast of the slide is higher than that of the original scene. The MTF curves of high-contrast repro film (no grey values, just black and white) must be very extreme in this respect. Carsten http://ourworld.compuserve.com/homepages/Carsten_Bockermann/