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 25mm F0.95 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. Sigma 16mm F1.4 DC DN MFT is the longer of the two lenses at 92mm. The Voigtlander Nokton 25mm F0.95 with a length of 70mm, is 22mm shorter. Besides being longer, the Sigma 16mm F1.4 DC DN MFT also has a larger diameter of 72mm compared to the Voigtlander Nokton 25mm F0.95's 58mm 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. Sigma 16mm F1.4 DC DN MFT weighs 405g, which means it is 5g (1%) lighter than the Voigtlander Nokton 25mm F0.95 which has a weight of 410g.
Below you can find the dimension and weight table of the Wideangle Prime Lenses in Micro Four Thirds Mount for size comparison purposes.
Wideangle Lenses in Micro Four Thirds Mount for Size Comparison
Filter Threads
The Sigma 16mm F1.4 DC DN MFT has a filter size of 67mm whereas the Voigtlander Nokton 25mm F0.95 has a 52mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 67mm filters that we recommend you to consider for the Sigma 16mm F1.4 DC DN MFT:
And these are the 52mm filters that we recommend for the Voigtlander Nokton 25mm F0.95:
Lens Mounts
Both the Sigma 16mm F1.4 DC DN MFT and the Voigtlander Nokton 25mm F0.95 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-1 II, Panasonic G9 II and OM System OM-5.
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.
On the other hand, the Voigtlander Nokton 25mm F0.95 is a prime lens with fixed focal lenght of 25mm which has an effective (full-frame 35mm equivalent) focal range of 50mm when used on a FourThirds format camera.