The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Voigtlander 35mm F1.4 Nokton and the Leica Summarit-M 35mm f2.5 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. Leica Summarit-M 35mm f2.5 is the longer of the two lenses at 34mm. The Voigtlander 35mm F1.4 Nokton with a length of 29mm, is 5mm shorter. On the other hand, the Voigtlander 35mm F1.4 Nokton has a larger diameter of 55mm compared to the Leica Summarit-M 35mm f2.5's 51mm 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. Voigtlander 35mm F1.4 Nokton weighs 200g, which means it is 20g (9%) lighter than the Leica Summarit-M 35mm f2.5 which has a weight of 220g.
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
Both the Voigtlander 35mm F1.4 Nokton and the Leica Summarit-M 35mm f2.5 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.
Voigtlander 35mm F1.4 Nokton is a prime lens with fixed focal lenght of 35mm. Leica Summarit-M 35mm f2.5 is a prime lens with fixed focal lenght of 25-35mm.