The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Olympus 30mm F3.5 Macro and the Voigtlander Nokton 25mm F0.95 Type 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.Voigtlander Nokton 25mm F0.95 Type II is the longer of the two lenses at 70mm. The Olympus 30mm F3.5 Macro with a length of 60mm is 10mm shorter. Besides being longer, the Voigtlander Nokton 25mm F0.95 Type II also has a larger diameter of 61mm compared to Olympus 30mm F3.5 Macro's 57mm 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. Olympus 30mm F3.5 Macro weighs 128g, which means it is 307g (70%) lighter than the Voigtlander Nokton 25mm F0.95 Type II which has a weight of 435g.
Lens Mounts
Both Olympus 30mm F3.5 Macro and Voigtlander Nokton 25mm F0.95 Type II 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
Olympus 30mm F3.5 Macro is a prime lens with fixed focal lenght of 30mm which has an effective (full-frame 35mm equivalent) focal range of 60mm when used on a FourThirds format camera. Voigtlander Nokton 25mm F0.95 Type II 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.