The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Voigtlander 35mm F2.5 Color Skopar and the Voigtlander 28mm F2 Ultron for their suitability to various photography scenarios:
Size and Weight Comparison
Size of a lens is an important deciding factor when comparing two lenses.Voigtlander 28mm F2 Ultron is the longer of the two lenses at 51mm. The Voigtlander 35mm F2.5 Color Skopar with a length of 23mm is 28mm shorter. On the other hand, there is no difference between the max diameters of these lenses, both coming at 55mm.
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 F2.5 Color Skopar weighs 134g, which means it is 110g (45%) lighter than the Voigtlander 28mm F2 Ultron which has a weight of 244g.
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 Voigtlander 35mm F2.5 Color Skopar and Voigtlander 28mm F2 Ultron 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 35mm F2.5 Color Skopar is a prime lens with fixed focal lenght of 35mm. Voigtlander 28mm F2 Ultron is a prime lens with fixed focal lenght of 28mm.