The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Carl Zeiss Distagon T1,4/35 ZM and the Leica Summicron-M 28mm f2 ASPH for their suitability to various photography scenarios:
Size and Weight Comparison
The size of a lens is an important deciding factor when comparing two lenses. Carl Zeiss Distagon T1,4/35 ZM is the longer of the two lenses at 65mm. The Leica Summicron-M 28mm f2 ASPH with a length of 41mm, is 24mm shorter. Besides being longer, the Carl Zeiss Distagon T1,4/35 ZM also has a larger diameter of 63mm compared to the Leica Summicron-M 28mm f2 ASPH's 53mm diameter.
The weight of a lens is as important as its external dimensions, especially if you are planning to hand hold your camera and lens combination for longer periods. Leica Summicron-M 28mm f2 ASPH weighs 270g, 29% (111g) lighter than the Carl Zeiss Distagon T1,4/35 ZM's weight of 381g.
Lens Mounts
Both the Carl Zeiss Distagon T1,4/35 ZM and the Leica Summicron-M 28mm f2 ASPH has the same Leica M lens mount. Some of the latest released cameras that are compatible with the Leica M lenses are Leica M11, Leica M10 and Leica M Typ 262.
Focal Range
Carl Zeiss Distagon T1,4/35 ZM is a prime lens with fixed focal lenght of 35mm. Leica Summicron-M 28mm f2 ASPH is a prime lens with fixed focal lenght of 28mm.