To keep life simple and to avoid compatibility issues down the road we prefer to avoid third party brands of lenses whenever possible. But for some reason the 50mm choices for both Nikon and Canon are surprisingly poor. While the Sigma 50mm Art lens is no Zeiss Otus lens (which costs about 5 times more), it’s an excellent lens and clearly better than the native offerings from Canon and Nikon.
This video shows Sigma’s 50mm Art lens in use for shooting fashion pictures. It provides a glimpse of what to expect from this lens. But remember, both Canon and Nikon’s cheap 50mm F1.8 lenses cost only a fraction of the price of Sigma’s lens are more than fine to start out with. Learn the art and the trade before worrying about having the best and most expensive of gear.