Archived posting to the Leica Users Group, 2005/02/12
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]It's supposed to be a plane, but usually has some curvature owing to lens imperfections. On Feb 13, 2005, at 1:02 AM, Adam Bridge wrote: > When a lens is focused at, for purposes of example, 3 meters, is the > focus for a plane that runs perpendicular to the centerline of the > lens measured from some point (like the film plane) or is it a > spherical surface measured in the same way? > > In my head I can make this work either way but I would like to know > how it really works. > > Thanks > > Adam > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information > > Jeff Sumner 3677 Glencairn Shaker Heights, Ohio 44122 USA Home: +1216 921-1941 Mobile: +1216 650-6663