Archived posting to the Leica Users Group, 1999/11/30
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]>>>>> At 07:12 PM 11/30/1999 -0800, Ken Iisaka wrote: >I concur. I have been told that Nikon designers were tempted to change the >mount to remedy its deficiencies, namely the long distance between the >flange and the film plane, and the diameter of the mount Whoever they were are wrong. I have it from the head of NPS that this is not the case. Eric Welch Carlsbad, CA <<<<< Eric, I don't think this is correct--I think Ken is right. Several lens designers have told me that the diameter of the exit pupil is the third biggest limitation on the design of fast lenses for SLRs--first if you discount selling price and size, which are the two limiting factors that usually beat it out. Have you ever seen a Canon 50mm f/1? It obviously uses every millimeter of the exit pupil. - --Mike