What lens you should use for a wide-angle depends on what you will be photographing. Different situations call for different focal lengths, even within the wide-angle category. For example, the Sony FE 14mm f/1.8 GM will likely not be the best choice for photographing portraits at a wedding, but it is a great astrophotography lens. However, if you are looking for a well-rounded wide-angle option, the Sony FE 16-35mm f/2.8 GM is an ideal combination of wide-angle and ultra-wide-angle.