The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Viltrox 13mm F1.4 XF and the Sigma 10mm F2.8 EX DC HSM Fisheye 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 13mm F1.4 XF is the longer of the two lenses at 90mm. The Sigma 10mm F2.8 EX DC HSM Fisheye with a length of 83mm, is 7mm shorter. On the other hand, the Sigma 10mm F2.8 EX DC HSM Fisheye has a larger diameter of 76mm compared to the Viltrox 13mm F1.4 XF's 74mm 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. Viltrox 13mm F1.4 XF weighs 420g, which means it is 55g (11%) lighter than the Sigma 10mm F2.8 EX DC HSM Fisheye which has a weight of 475g.
Lens Mounts
The Viltrox 13mm F1.4 XF has the Fujifilm X lens mount whereas the Sigma 10mm F2.8 EX DC HSM Fisheye has the Sigma SA lens mount. Some of the latest released cameras that are compatible with these mounts are Fujifilm X-T30 III, Fujifilm X-E5 and Fujifilm X-M5 for the Fujifilm X Mount and Sigma SD1 Merrill, Sigma SD1 and for the Sigma SA Mount.
Sigma 10mm F2.8 EX DC HSM Fisheye is also available in Canon EF and Nikon F (DX) mounts.
Focal Range
Viltrox 13mm F1.4 XF is a prime lens with fixed focal lenght of 13mm which has an effective (full-frame 35mm equivalent) focal range of
19.5mm when used on a APS-C / DX format camera.
On the other hand, the Sigma 10mm F2.8 EX DC HSM Fisheye is a prime lens with fixed focal lenght of 10mm which has an effective (full-frame 35mm equivalent) focal range of 15mm when used on a APS-C / DX format camera.
