The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Leica Elmar-M 24mm f3.8 ASPH and the Carl Zeiss Biogon T2,8/25 ZM for their suitability to various photography scenarios:
Size and Weight Comparison
The size of a lens is a crucial factor to consider when comparing two lenses. Carl Zeiss Biogon T2,8/25 ZM is the longer of the two lenses at 71mm. The Leica Elmar-M 24mm f3.8 ASPH with a length of 53mm, is 18mm shorter. Besides being longer, the Carl Zeiss Biogon T2,8/25 ZM also has a larger diameter of 53mm compared to the Leica Elmar-M 24mm f3.8 ASPH's 41mm diameter.
The weight of a lens is equally significant as its external dimensions, particularly if you intend to handhold your camera and lens combination for extended periods.
Below you can find the dimension and weight table of the Wideangle Prime Lenses in Leica M Mount for size comparison purposes.
Wideangle Lenses in Leica M Mount for Size Comparison
Filter Threads
Both the Leica Elmar-M 24mm f3.8 ASPH and the Carl Zeiss Biogon T2,8/25 ZM have the same Filter thread size of 46mm.
Below are links to the 46mm filters that we recommend you to consider for these lenses:
Lens Mounts
Both the Leica Elmar-M 24mm f3.8 ASPH and the Carl Zeiss Biogon T2,8/25 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 Monochrome, Leica M11 and Leica M10.
Focal Range
Leica Elmar-M 24mm f3.8 ASPH is a prime lens with fixed focal lenght of 24mm.
On the other hand, the Carl Zeiss Biogon T2,8/25 ZM is a prime lens with fixed focal lenght of 25mm.