The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Leica Summarit-M 35mm F2.4 ASPH and the Carl Zeiss C Biogon T2,8/35 ZM 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 C Biogon T2,8/35 ZM is the longer of the two lenses at 55mm. The Leica Summarit-M 35mm F2.4 ASPH with a length of 34mm, is 21mm shorter. On the other hand, there is no difference between the max diameters of these lenses, both coming at 52mm.
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 Summarit-M 35mm F2.4 ASPH weighs 197g, which means it is 3g (1%) lighter than the Carl Zeiss C Biogon T2,8/35 ZM which has a weight of 200g.
Lens Mounts
Both the Leica Summarit-M 35mm F2.4 ASPH and the Carl Zeiss C Biogon T2,8/35 ZM 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
Both lenses have the same focal range of 35mm but while Leica Summarit-M 35mm F2.4 ASPH has the fastest aperture of F2.4, the Carl Zeiss C Biogon T2,8/35 ZM's widest aperture value is F2.8.