The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Leica Summarit-M 75mm F2.4 ASPH and the Leica Macro-Elmar-M 90mm f4 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 Summarit-M 75mm F2.4 ASPH is the longer of the two lenses at 61mm. The Leica Macro-Elmar-M 90mm f4 with a length of 41mm is 20mm shorter. Besides being longer, the Leica Summarit-M 75mm F2.4 ASPH also has a larger diameter of 55mm compared to Leica Macro-Elmar-M 90mm f4's 52mm 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 Macro-Elmar-M 90mm f4 weighs 240g, 26% (85g) lighter than the Leica Summarit-M 75mm F2.4 ASPH's weight of 325g.
Lens Mounts
Both Leica Summarit-M 75mm F2.4 ASPH and Leica Macro-Elmar-M 90mm f4 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 Summarit-M 75mm F2.4 ASPH is a prime lens with fixed focal lenght of 75mm. Leica Macro-Elmar-M 90mm f4 is a prime lens with fixed focal lenght of 90mm.