The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Voigtlander 40mm F1.4 Nokton Classic and the Carl Zeiss Biogon T2/35 ZM for their suitability to various photography scenarios:
Size and Weight Comparison
The size of a lens is a crucial factor to consider when comparing two lenses. Carl Zeiss Biogon T2/35 ZM is the longer of the two lenses at 68mm. The Voigtlander 40mm F1.4 Nokton Classic with a length of 30mm, is 38mm shorter. On the other hand, the Voigtlander 40mm F1.4 Nokton Classic has a larger diameter of 55mm compared to the Carl Zeiss Biogon T2/35 ZM's 52mm diameter.
The weight of a lens is equally significant as its external dimensions, particularly if you intend to handhold your camera and lens combination for extended periods. Voigtlander 40mm F1.4 Nokton Classic weighs 175g, which means it is 65g (27%) lighter than the Carl Zeiss Biogon T2/35 ZM which has a weight of 240g.
Lens Mounts
Both the Voigtlander 40mm F1.4 Nokton Classic and the Carl Zeiss Biogon T2/35 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 Monochrome, Leica M11 and Leica M10.
Focal Range
Voigtlander 40mm F1.4 Nokton Classic is a prime lens with fixed focal lenght of 40mm.
On the other hand, the Carl Zeiss Biogon T2/35 ZM is a prime lens with fixed focal lenght of 35mm.