The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Leica Super-Elmar-M 21mm f3.4 ASPH and the Leica Elmarit-M 24mm f2.8 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. Leica Elmarit-M 24mm f2.8 ASPH is the longer of the two lenses at 45mm. The Leica Super-Elmar-M 21mm f3.4 ASPH with a length of 43mm, is 2mm shorter. Besides being longer, the Leica Elmarit-M 24mm f2.8 ASPH also has a larger diameter of 58mm compared to the Leica Super-Elmar-M 21mm f3.4 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 Super-Elmar-M 21mm f3.4 ASPH weighs 279g, which means it is 11g (3%) lighter than the Leica Elmarit-M 24mm f2.8 ASPH which has a weight of 290g.
Below you can find the dimension and weight table of the Wideangle Prime Lenses in Leica M Mount for size comparison purposes.
Wideangle Prime Lenses in Leica M Mount for Size Comparison
Lens Mounts
Both the Leica Super-Elmar-M 21mm f3.4 ASPH and the Leica Elmarit-M 24mm f2.8 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
Leica Super-Elmar-M 21mm f3.4 ASPH is a prime lens with fixed focal lenght of 21mm. Leica Elmarit-M 24mm f2.8 ASPH is a prime lens with fixed focal lenght of 24mm.