The Viltrox AF 13mm F1.4 is a fast ultra-wide prime lens for Nikon Z-mount APS-C mirrorless cameras, offering a bright f/1.4 aperture suited for landscape, architecture, astrophotography, and vlogging. It features a stepping motor for quiet autofocus and supports firmware updates via USB. Part of Viltrox's APS-C prime lens lineup for Nikon Z-mount crop-sensor cameras.