The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Sigma 16mm F1.4 DC DN MFT and the Voigtlander Nokton 17.5mm F0.95 ASPH for their suitability to various photography scenarios:
Size and Weight Comparison
Size of a lens is an important deciding factor when comparing two lenses.Sigma 16mm F1.4 DC DN MFT is the longer of the two lenses at 92mm. The Voigtlander Nokton 17.5mm F0.95 ASPH with a length of 80mm is 12mm shorter. Besides being longer, the Sigma 16mm F1.4 DC DN MFT also has a larger diameter of 72mm compared to Voigtlander Nokton 17.5mm F0.95 ASPH'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. Sigma 16mm F1.4 DC DN MFT weighs 405g, which means it is 135g (25%) lighter than the Voigtlander Nokton 17.5mm F0.95 ASPH which has a weight of 540g.
Below you can find the dimension and weight table of the 'Wideangle Prime Lenses in Micro Four Thirds Mount for size comparison purposes.
Wideangle Prime Lenses in Micro Four Thirds Mount for Size Comparison
Lens Mounts
Both Sigma 16mm F1.4 DC DN MFT and Voigtlander Nokton 17.5mm F0.95 ASPH has the same Micro Four Thirds lens mount. Some of the latest released cameras that are compatible with the Micro Four Thirds lenses are OM System OM-5, Panasonic GH6 and OM System OM-1.
Focal Range
Sigma 16mm F1.4 DC DN MFT is a prime lens with fixed focal lenght of 16mm which has an effective (full-frame 35mm equivalent) focal range of 32mm when used on a FourThirds format camera. Voigtlander Nokton 17.5mm F0.95 ASPH is a prime lens with fixed focal lenght of 18mm which has an effective (full-frame 35mm equivalent) focal range of 36mm when used on a FourThirds format camera.