Sigma's latest two lenses, the 20mm f/1.4 DG DN Art and 24mm f/1.4 DG DN Art, continue the Art series custom in that they provide sharp and impressive image quality while significantly undercutting the prices of many first-party options. This excellent video review takes a look at the 24mm f/1.4 DG DN Art and the performance and image quality you can expect from it.