Hi Can anyone tell me the difference between the Schneider Super Angulon 120 and the 121 f/8 lenses (besides the 1 mm). I have checked the spec sheets and been to the Schneider website for info and both are 100 degree lenses and have almost the same angle of view-maybe the main difference is in the shutters they are mounted in? I am courious as to why Schneider had two SA lenses with such close specifications. Also anyone have experience with sharpness comparisons between the two. Have heard that the 120 may not be as sharp? Thanks in advance for any info.

Regards

Bob