Archived posting to the Leica Users Group, 1998/03/21
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]At 16:53 20/03/98 -0500, you wrote: >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 Marc- I don't have an early Elmar available, but I find this seriously fascinating- could you possibly try to describe this early Elmar/CZJ Tessar comparison in words? Are the results similar, identical, or different? Joe Berenbaum