The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Voigtlander Nokton 42.5mm F0.95 and the Voigtlander Nokton 17.5mm F0.95 ASPH 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. Voigtlander Nokton 17.5mm F0.95 ASPH is the longer of the two lenses at 80mm. The Voigtlander Nokton 42.5mm F0.95 with a length of 75mm, is 5mm shorter. On the other hand, the Voigtlander Nokton 42.5mm F0.95 has a larger diameter of 64mm compared to the Voigtlander Nokton 17.5mm F0.95 ASPH's 63mm 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 Nokton 17.5mm F0.95 ASPH weighs 540g, 5% (31g) lighter than the Voigtlander Nokton 42.5mm F0.95's weight of 571g.
Filter Threads
Both the Voigtlander Nokton 42.5mm F0.95 and the Voigtlander Nokton 17.5mm F0.95 ASPH have the same Filter thread size of 58mm.
Below are links to the 58mm filters that we recommend you to consider for these lenses:
Lens Mounts
Both the Voigtlander Nokton 42.5mm F0.95 and the 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-3 Astro, OM System OM-5 II and OM System OM-3.
Focal Range
Voigtlander Nokton 42.5mm F0.95 is a prime lens with fixed focal lenght of 43mm which has an effective (full-frame 35mm equivalent) focal range of
86mm when used on a FourThirds format camera.
On the other hand, the 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.
