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 Samyang 21mm F1.4 ED AS UMC CS 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. Samyang 21mm F1.4 ED AS UMC CS is the longer of the two lenses at 68mm. The Voigtlander Ultron 27mm F2 with a length of 23mm, is 45mm shorter. Besides being longer, the Samyang 21mm F1.4 ED AS UMC CS also has a larger diameter of 64mm compared to the Voigtlander Ultron 27mm F2's 59mm 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 155g (56%) lighter than the Samyang 21mm F1.4 ED AS UMC CS which has a weight of 275g.
Below you can find the dimension and weight table of the Wideangle Prime Lenses in Fujifilm X Mount for size comparison purposes.
Wideangle Lenses in Fujifilm X Mount for Size Comparison
Filter Threads
The Voigtlander Ultron 27mm F2 has a filter size of 43mm whereas the Samyang 21mm F1.4 ED AS UMC CS has a 58mm 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 58mm filters that we recommend for the Samyang 21mm F1.4 ED AS UMC CS:
Lens Mounts
Both the Voigtlander Ultron 27mm F2 and the Samyang 21mm F1.4 ED AS UMC CS has the same Fujifilm X lens mount. Some of the latest released cameras that are compatible with the Fujifilm X lenses are Fujifilm X-T30 III, Fujifilm X-E5 and Fujifilm X-M5.
Samyang 21mm F1.4 ED AS UMC CS is also available in Canon EF-M , Micro Four Thirds and Sony E mounts.
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 Samyang 21mm F1.4 ED AS UMC CS is a prime lens with fixed focal lenght of 21mm which has an effective (full-frame 35mm equivalent) focal range of 31.5mm when used on a APS-C / DX format camera.
