The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Fujifilm 23mm F2.8 and the Viltrox 27mm F1.2 Pro XF 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 23mm F2.8 with a length of 23mm, is 69mm shorter. Besides being longer, the Viltrox 27mm F1.2 Pro XF also has a larger diameter of 73mm compared to the Fujifilm 23mm F2.8's 62mm 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 23mm F2.8 weighs 90g, which means it is 470g (83%) lighter than the Viltrox 27mm F1.2 Pro XF which has a 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 Fujifilm 23mm F2.8 has a filter size of 39mm whereas the Viltrox 27mm F1.2 Pro XF 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 39mm filters that we recommend you to consider for the Fujifilm 23mm F2.8:
And these are the 67mm filters that we recommend for the Viltrox 27mm F1.2 Pro XF:
Lens Mounts
Both the Fujifilm 23mm F2.8 and the Viltrox 27mm F1.2 Pro XF 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
Fujifilm 23mm F2.8 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.
On the other hand, the 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.
