The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Samyang 21mm F1.4 ED AS UMC CS and the Fujifilm 23mm F2 WR 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 Fujifilm 23mm F2 WR with a length of 52mm, is 16mm shorter. Besides being longer, the Samyang 21mm F1.4 ED AS UMC CS also has a larger diameter of 64mm compared to the Fujifilm 23mm F2 WR's 60mm diameter.
Below you can find a scaled side-by-side image of Samyang 21mm F1.4 ED AS UMC CS and Fujifilm 23mm F2 WR to get a better idea of how their sizes compare in real life.
Comparison image of the Samyang 21mm F1.4 ED AS UMC CS and the Fujifilm 23mm F2 WR Size and Weight 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. Fujifilm 23mm F2 WR weighs 180g, 34% (95g) lighter than the Samyang 21mm F1.4 ED AS UMC CS's 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 Samyang 21mm F1.4 ED AS UMC CS has a filter size of 58mm whereas the Fujifilm 23mm F2 WR has a 43mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 58mm filters that we recommend you to consider for the Samyang 21mm F1.4 ED AS UMC CS:
And these are the 43mm filters that we recommend for the Fujifilm 23mm F2 WR:
Lens Mounts
Both the Samyang 21mm F1.4 ED AS UMC CS and the Fujifilm 23mm F2 WR 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 the Canon EF-M , Micro Four Thirds and Sony E mounts.
Focal Range
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.
On the other hand, the Fujifilm 23mm F2 WR is a prime lens with fixed focal lenght of 23mm which has an effective (full-frame 35mm equivalent) focal range of 34.5mm when used on a APS-C / DX format camera.