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 Summilux-M 35mm f1.4 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 Summilux-M 35mm f1.4 ASPH with a length of 46mm, is 19mm shorter. Besides being longer, the Carl Zeiss Distagon T1,4/35 ZM also has a larger diameter of 63mm compared to the Leica Summilux-M 35mm f1.4 ASPH's 56mm 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 Summilux-M 35mm f1.4 ASPH weighs 320g, 16% (61g) 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 Summilux-M 35mm f1.4 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 Monochrome, Leica M11 and Leica M10.
Focal Range
Both lenses have the same focal range of 35mm and the fastest aperture of F1.4.