The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Leica Summicron-M 28mm f2 ASPH and the Leica Elmarit-M 24mm f2.8 ASPH for their suitability to various photography scenarios:
Size and Weight Comparison
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 Summicron-M 28mm f2 ASPH with a length of 41mm is 4mm shorter. Besides being longer, the Leica Elmarit-M 24mm f2.8 ASPH also has a larger diameter of 58mm compared to Leica Summicron-M 28mm f2 ASPH's 53mm diameter.
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, which means it is 20g (6%) 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 Leica Summicron-M 28mm f2 ASPH and 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, Leica M10 and Leica M Typ 262.
Focal Range
Leica Summicron-M 28mm f2 ASPH is a prime lens with fixed focal lenght of 28mm. Leica Elmarit-M 24mm f2.8 ASPH is a prime lens with fixed focal lenght of 24mm.