For photographers seeking to seamlessly integrate their Canon Ef/Ef-s-series lenses with Nikon Z Series cameras, the Ef-z Lens Mount Adapter is an ideal solution. This high-quality adapter ring supports firmware upgrades via a Usb port, ensuring compatibility with a wide range of lenses and camera models. The Ef-z Lens Mount Adapter is designed to provide Auto Focus (Af) functionality, enabling easy and fast focusing. It has been tested and proven to work efficiently with Nikon Z6, Z7, and Z50 models, with specific firmware versions for each model. This adapter is compatible with a broad spectrum of Canon lenses, including but not limited to the Canon Ef 17-40mm F4 L, Canon Ef 16-35mm F2.8 L Ii Usm, Canon Ef 24-70mm F2.8 L Ii Usm, and Canon Ef 24-105mm F4 L Is Usm Maceo. It also supports Canon Ef-s lenses such as the Canon Ef-s 17-85mm F4-5.6 Is Usm and Canon Ef-s 18-135mm F3.5-5.6 Is Stm.