Archived posting to the Leica Users Group, 1998/03/20
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]At 01:01 PM 3/20/98 -0800, Don Bledsoe wrote: >I can't help but >wonder how he "tweaked his design to exaggerated the softness of the >out-of-focus image?" Exactly how did he go about consciously doing >this? Did he design for excessive coma? Astigmatism? Spherical >aberration? I had understood that he increased the spherical aberration, but Eric Welch contested this several years back. I'd suggest that you pick up an LTM camera and shoot a roll with an early Elmar and do the same with a CZJ Tessar. Print the pictures. The results are rather startling. Marc msmall@roanoke.infi.net FAX: +540/343-7315 Cha robh bas fir gun ghras fir!