The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Viltrox AF 56mm f1.7 XF and the Sigma 56mm F1.4 DC DN C 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. Sigma 56mm F1.4 DC DN C is the longer of the two lenses at 60mm. The Viltrox AF 56mm f1.7 XF with a length of 55mm, is 5mm shorter. Besides being longer, the Sigma 56mm F1.4 DC DN C also has a larger diameter of 67mm compared to the Viltrox AF 56mm f1.7 XF'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. Viltrox AF 56mm f1.7 XF weighs 171g, which means it is 109g (38%) lighter than the Sigma 56mm F1.4 DC DN C which has a weight of 280g.
Filter Threads
The Viltrox AF 56mm f1.7 XF has a filter size of 52mm whereas the Sigma 56mm F1.4 DC DN C has a 55mm diameter. Larger filters are generally more expensive than the smaller ones given all the other features are equal.
Below are links to the 52mm filters that we recommend you to consider for the Viltrox AF 56mm f1.7 XF:
And these are the 55mm filters that we recommend for the Sigma 56mm F1.4 DC DN C:
Lens Mounts
The Viltrox AF 56mm f1.7 XF has the Fujifilm X lens mount whereas the Sigma 56mm F1.4 DC DN C has the Sony E 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 Sony ZV-E10 II, Sony A6700 and Sony FX30 for the Sony E Mount.
Sigma 56mm F1.4 DC DN C is also available in Micro Four Thirds and Leica L mounts.
Focal Range
Both lenses have the same focal range of
56mm but while Viltrox AF 56mm f1.7 XF has the fastest aperture of
F1.7, the Sigma 56mm F1.4 DC DN C's widest aperture value is
F1.4.
