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 Sigma 30mm F1.4 EX DC HSM 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 Sigma 30mm F1.4 EX DC HSM with a length of 59mm, is 33mm shorter. On the other hand, the Sigma 30mm F1.4 EX DC HSM has a larger diameter of 77mm compared to the Viltrox 27mm F1.2 Pro XF'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. Sigma 30mm F1.4 EX DC HSM weighs 430g, 23% (130g) lighter than the Viltrox 27mm F1.2 Pro XF's weight of 560g.
Filter Threads
The Viltrox 27mm F1.2 Pro XF has a filter size of 67mm whereas the Sigma 30mm F1.4 EX DC HSM has a 62mm 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 62mm filters that we recommend for the Sigma 30mm F1.4 EX DC HSM:
Lens Mounts
The Viltrox 27mm F1.2 Pro XF has the Fujifilm X lens mount whereas the Sigma 30mm F1.4 EX DC HSM has the Canon EF-S 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 Canon T8i, Canon 90D and Canon SL3 for the Canon EF-S Mount.
Sigma 30mm F1.4 EX DC HSM is also available in Nikon F (DX) , Four Thirds, Pentax KAF, Sony Alpha and Sigma SA mounts.
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 Sigma 30mm F1.4 EX DC HSM is a prime lens with fixed focal lenght of 30mm which has an effective (full-frame 35mm equivalent) focal range of 48mm when used on a APS-C / DX format camera.
