One of the challenges with wide angles lenses is barrel distortion. The wider a lens gets, the more distortion becomes an issue. Some lenses are specifically designed to correct this distortion. These lenses are called rectilinear lenses and they stretch the objects in the image, especially towards the edges, to make them appear straight. These kinds of lenses are also called zero-distortion lenses. Canon and Nikon make them for regular cameras and so does Venus Optics. However, Venus Optics has now created a version of their popular Laowa 9mm lens for the Zenmuse X7 camera that can be mounted on the Inspire 2. It is called the Laowa 9mm f/2.8 DL Zero-D lens.