Comparison 2.8/35mm Summaron & Zeiss ZM 2.8/35mm C-Biogon
Both lenses were actually used on the M6 loaded with Sensia 100 used on a tripod in my backyard at F 8 and 1/125 sec. shutter speed.
Here is a crop from both images:
Summaron 35mm at F 8 & 1/125 sec
C-Biogon 35mm at F 8 & 1/125 sec
This is a brief comparison of the 30+ year old 2.8/35mm Leitz Summaron (shown below on the Leica M3) with the current Zeiss ZM C-Biogon 2.8/35 shown on the original Leica M6.
Both lenses were actually used on the M6 loaded with Sensia 100 used on a tripod in my backyard at F 8 and 1/125 sec. shutter speed.
Here is a crop from both images:
Summaron 35mm at F 8 & 1/125 sec
C-Biogon 35mm at F 8 & 1/125 sec
The Zeiss Biogon in sharper and shows better contrast than the Leitz Summaron.
