The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Viltrox 27mm F1.2 Pro XF and the Fujifilm 14mm F2.8 R 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. Viltrox 27mm F1.2 Pro XF is the longer of the two lenses at 92mm. The Fujifilm 14mm F2.8 R with a length of 58mm, is 34mm shorter. Besides being longer, the Viltrox 27mm F1.2 Pro XF also has a larger diameter of 73mm compared to the Fujifilm 14mm F2.8 R's 65mm 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. Fujifilm 14mm F2.8 R weighs 235g, 58% (325g) lighter than the Viltrox 27mm F1.2 Pro XF's weight of 560g.
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 Viltrox 27mm F1.2 Pro XF has a filter size of 67mm whereas the Fujifilm 14mm F2.8 R 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 67mm filters that we recommend you to consider for the Viltrox 27mm F1.2 Pro XF:
And these are the 58mm filters that we recommend for the Fujifilm 14mm F2.8 R:
Lens Mounts
Both the Viltrox 27mm F1.2 Pro XF and the Fujifilm 14mm F2.8 R 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.
Focal Range
Viltrox 27mm F1.2 Pro XF is a prime lens with fixed focal lenght of 27mm 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 Fujifilm 14mm F2.8 R is a prime lens with fixed focal lenght of 14mm which has an effective (full-frame 35mm equivalent) focal range of 21mm when used on a APS-C / DX format camera.