Archived posting to the Leica Users Group, 1998/11/18
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Dick, Thanks for pointing me to Schneider's web site http://www.schneideroptics.com/quality/quality.htm . The paper does indeed have a nice explanation of MTF curves. However, one question still remains unanswered. How come some graphs start above 100%? For example, the MTF curve for Provia shows numbers above 100% for all image frequencies less than 10. This does not make sense to me. How can a lens transmit MORE information than is in the actual image? Nathan - -- Nathan Wajsman Overijse, Belgium Photography page: http://members.tripod.com/~belgiangator/index.html Motorcycle page: http://www.geocities.com/motorcity/downs/1704/index.html