The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Fujifilm XF 10-24mm F4 R WR and the Samyang 12mm f2.0 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. Fujifilm XF 10-24mm F4 R WR is the longer of the two lenses at 87mm. The Samyang 12mm f2.0 with a length of 59mm, is 28mm shorter. Besides being longer, the Fujifilm XF 10-24mm F4 R WR also has a larger diameter of 78mm compared to the Samyang 12mm f2.0's 73mm 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. Samyang 12mm f2.0 weighs 260g, 32% (125g) lighter than the Fujifilm XF 10-24mm F4 R WR's weight of 385g.
Filter Threads
The Fujifilm XF 10-24mm F4 R WR has a filter size of 72mm whereas the Samyang 12mm f2.0 has a 67mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 72mm filters that we recommend you to consider for the Fujifilm XF 10-24mm F4 R WR:
And these are the 67mm filters that we recommend for the Samyang 12mm f2.0:
Lens Mounts
Both the Fujifilm XF 10-24mm F4 R WR and the Samyang 12mm f2.0 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 12mm f2.0 is also available in Canon EF-M , Micro Four Thirds, Sony E and Samsung NX mounts.
Focal Range
Fujifilm XF 10-24mm F4 R WR has a focal range of 10-24mm and
2.4X zoom ratio which has an effective (full-frame 35mm equivalent) focal range of
15-36mm when used on a APS-C / DX format camera.
On the other hand, the Samyang 12mm f2.0 is a prime lens with fixed focal lenght of 12mm which has an effective (full-frame 35mm equivalent) focal range of 18mm when used on a APS-C / DX format camera.