The VILTROX NF-Z mount adapter is an adapter with auto-aperture function for using Nikon F-mount lenses. - Brand: VILTROX - Model Name: NF-Z - Type: Mount Adapter - Features: Equipped with auto-aperture function - Compatibility: Nikon Z mount Thank you for viewing. After acquiring it used, I only used it to check the operation of the lens, and I haven't used it much. I confirmed the AF and aperture operation with a 35mm AF prime lens from a Chinese manufacturer. The firmware is also up to date.