Metabones PL to Nikon Z-mount T (Black Matt) features Both camera-side & lens-side of the adapter are made of brass, precision-machined & plated, Satin surface finish, Just like your OEM lens & camera mounts, Full Aperture Control From Camera Body, This glass technology, Precise fit & solid connection, Full electronic control of aperture from the body, Reach infinity focus with correct registration distance.