The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Voigtlander 12mm F5.6 and the Carl Zeiss Distagon T2,8/15 ZM 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. Carl Zeiss Distagon T2,8/15 ZM is the longer of the two lenses at 92mm. The Voigtlander 12mm F5.6 with a length of 43mm, is 49mm shorter. Besides being longer, the Carl Zeiss Distagon T2,8/15 ZM also has a larger diameter of 78mm compared to the Voigtlander 12mm F5.6's 75mm 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 12mm F5.6 weighs 230g, which means it is 320g (58%) lighter than the Carl Zeiss Distagon T2,8/15 ZM which has a weight of 550g.
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 12mm F5.6 and the Carl Zeiss Distagon T2,8/15 ZM 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.
Voigtlander 12mm F5.6 is a prime lens with fixed focal lenght of 12mm. Carl Zeiss Distagon T2,8/15 ZM is a prime lens with fixed focal lenght of 15mm.