The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Voigtlander Ultron 27mm F2 and the Voigtlander 50mm f2.2 VM 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 50mm f2.2 VM is the longer of the two lenses at 30mm. The Voigtlander Ultron 27mm F2 with a length of 23mm, is 7mm shorter. On the other hand, the Voigtlander Ultron 27mm F2 has a larger diameter of 59mm compared to the Voigtlander 50mm f2.2 VM's 51mm 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 Ultron 27mm F2 weighs 120g, which means it is 15g (11%) lighter than the Voigtlander 50mm f2.2 VM which has a weight of 135g.
Filter Threads
The Voigtlander Ultron 27mm F2 has a filter size of 43mm whereas the Voigtlander 50mm f2.2 VM has a 39mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 43mm filters that we recommend you to consider for the Voigtlander Ultron 27mm F2:
And these are the 39mm filters that we recommend for the Voigtlander 50mm f2.2 VM:
Lens Mounts
The Voigtlander Ultron 27mm F2 has the Fujifilm X lens mount whereas the Voigtlander 50mm f2.2 VM has the Leica M lens mount. Some of the latest released cameras that are compatible with these mounts are Fujifilm X-T30 III, Fujifilm X-E5 and Fujifilm X-M5 for the Fujifilm X Mount and Leica M EV1, Leica M11-D and Pixii Max for the Leica M Mount.
Focal Range
Voigtlander Ultron 27mm F2 is a prime lens with fixed focal lenght of 28mm which has an effective (full-frame 35mm equivalent) focal range of
40.5mm when used on a APS-C / DX format camera.
On the other hand, the Voigtlander 50mm f2.2 VM is a prime lens with fixed focal lenght of 50mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of 75mm.
