The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Leica Summarit-M 50mm F2.4 ASPH and the Voigtlander 50mm F1.5 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. Voigtlander 50mm F1.5 is the longer of the two lenses at 46mm. The Leica Summarit-M 50mm F2.4 ASPH with a length of 33mm, is 13mm shorter. Besides being longer, the Voigtlander 50mm F1.5 also has a larger diameter of 54mm compared to the Leica Summarit-M 50mm F2.4 ASPH's 52mm 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 Summarit-M 50mm F2.4 ASPH weighs 105g, which means it is 188g (64%) lighter than the Voigtlander 50mm F1.5 which has a weight of 293g.
Below you can find the dimension and weight table of the Standard Prime Lenses in Leica M Mount for size comparison purposes.
Standard Prime Lenses in Leica M Mount for Size Comparison
Both the Leica Summarit-M 50mm F2.4 ASPH and the Voigtlander 50mm F1.5 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.
Both lenses have the same focal range of 50mm but while Leica Summarit-M 50mm F2.4 ASPH has the fastest aperture of F2.4, the Voigtlander 50mm F1.5's widest aperture value is F1.5.