The Sigma 20mm f/1.4 DG HSM | Art is specially designed to excel in all facets of wide-angle lens capability, from edge-to-edge sharpness to a beautiful focal length. While most would say that the f/1.4 aperture is not practical for typical wide-angle subjects, there are many instances in which a wide-open aperture would suit you well. For instance, concert photographers often find themselves packing a wide-angle into their kit, capturing unique images of music venues in lower-lit conditions. If you know how to incorporate the shallow depth of field into your images, there is no reason why you wouldn’t want to pick this lens in place of anything else.
Competitive brands do have comparable lenses, and these lenses are actually significantly smaller than this Sigma model. However, the weight and size difference all boils down to the Sigma lens’s spectacular construction, ensuring that the quality is superb. At a weight of 950 grams (approximately 2 lbs) your arms will feel it over time, however, the lens is made up of metal materials that can withstand an accidental drop and rough weather conditions. This is especially useful for landscape and astrophotographers who tend to find themselves in tumultuous outdoor conditions!