The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Zeiss Milvus 18mm F2.8 and the Voigtlander 28mm F2.8 Color Skopar SL II for their suitability to various photography scenarios:
Size and Weight Comparison
Size of a lens is an important deciding factor when comparing two lenses.Zeiss Milvus 18mm F2.8 is the longer of the two lenses at 93mm. The Voigtlander 28mm F2.8 Color Skopar SL II with a length of 25mm is 68mm shorter. Besides being longer, the Zeiss Milvus 18mm F2.8 also has a larger diameter of 73mm compared to Voigtlander 28mm F2.8 Color Skopar SL II's 63mm 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. Voigtlander 28mm F2.8 Color Skopar SL II weighs 180g, 75% (541g) lighter than the Zeiss Milvus 18mm F2.8's weight of 721g.
Below you can find the dimension and weight table of the 'Wideangle Prime Lenses in Nikon F (FX) Mount for size comparison purposes.
Wideangle Prime Lenses in Nikon F (FX) Mount for Size Comparison
Lens Mounts
Both Zeiss Milvus 18mm F2.8 and Voigtlander 28mm F2.8 Color Skopar SL II has the same Nikon F (FX) lens mount. Some of the latest released cameras that are compatible with the Nikon F (FX) lenses are Nikon D6, Nikon D780 and Nikon D3500.
Zeiss Milvus 18mm F2.8 is also available in Canon EF mount.
Voigtlander 28mm F2.8 Color Skopar SL II is also available in Canon EF mount.
Focal Range
Zeiss Milvus 18mm F2.8 is a prime lens with fixed focal lenght of 18mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides an 35mm (FF) equivalent of 27mm.
Voigtlander 28mm F2.8 Color Skopar SL II is a prime lens with fixed focal lenght of 28mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides an 35mm (FF) equivalent of 42mm.