Archived posting to the Leica Users Group, 1998/05/04
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]<< If apocromats are lenses which have been corrected so that the three primary colors are in focus on the same plane, then why are there no short focal length apocromats, e.g. under 100mm in 35mm format? >> Chromatic abberation is less noticable at medium focal lenths. It becomes more evident at longer focal lengths. Tom Shea