This is a mount adapter with a focal reducer lens for attaching M42 mount lenses to Nikon Z mount cameras. The built-in reducer lens reduces the focal length by a factor of 0.726. This allows you to shoot with full-frame lenses on APS-C cameras at a field of view closer to the original. Furthermore, the F-number becomes one stop brighter. Selling due to equipment change. Reference: Amazon https://amzn.asia/d/8vwkgiR 19,600 yen (as of October 13, 2025) ---------- #Nikon #Nikon #zfc #mountadapter #M42 #NZ