With Nikon and Canon starting to push quite hard in the professional mirrorless realm in the last few years, we have seen a resurgence of the development of professional supertelephoto lenses. Most such lenses have long been near the top of image quality and autofocus performance, so a lot of the focus has been on reducing weight and size while maintaining that performance and image quality. The Nikon NIKKOR Z 800mm f/6.3 VR S lens is the latest in that trend, and this great video takes a first look at what we can expect from it.