Nikon Z 800mm f/6.3 VR SHuge focal length, compact and lightweight design. The NIKKOR Z 800mm f 6. 3 VR S, from Nikon, is a super telephoto prime distinguished by the unique combination of one of the longest focal lengths available in a surprisingly portable package. This distinct design is made possible by the inclusion of a Phase Fresnel element, which cuts the overall weight by 50% and the length by 16% compared to the former F mount 800mm f 5. 6 lens. A sophisticated