The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Voigtlander 25mm F4 Color Skopar and the Voigtlander 15mm F4.5 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 15mm F4.5 is the longer of the two lenses at 38mm. The Voigtlander 25mm F4 Color Skopar with a length of 30mm, is 8mm shorter. Besides being longer, the Voigtlander 15mm F4.5 also has a larger diameter of 59mm compared to the Voigtlander 25mm F4 Color Skopar's 55mm 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.
Filter Threads
The Voigtlander 25mm F4 Color Skopar has a filter size of 39mm whereas the Voigtlander 15mm F4.5 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 39mm filters that we recommend you to consider for the Voigtlander 25mm F4 Color Skopar:
And these are the 52mm filters that we recommend for the Voigtlander 15mm F4.5:
Lens Mounts
Both the Voigtlander 25mm F4 Color Skopar and the Voigtlander 15mm F4.5 has the same Leica M lens mount. Some of the latest released cameras that are compatible with the Leica M lenses are Leica M11 Monochrome, Leica M11 and Leica M10.
Focal Range
Voigtlander 25mm F4 Color Skopar is a prime lens with fixed focal lenght of 25mm.
On the other hand, the Voigtlander 15mm F4.5 is a prime lens with fixed focal lenght of 15mm.