Smart adapter to convert EF lenses to NZ mount. - Brand: fringer - Model Name: FR-NZ1 - Type: Mount Adapter - Included Items: Warranty card - Color: Black Thank you for viewing. I have been using this adapter almost constantly on my Nikon Z6ii. While some EF lenses may not work, all of my lenses have functioned properly. On Nikon cameras, image stabilization, face (eye) detection, and high-speed autofocus work stably. I believe it is comparable to the autofocus speed of F-mount lenses when using the FTZII adapter. It also tracked subjects reasonably well with super-telephoto lenses. APS-C specific lenses could also be used in crop mode on a full-frame camera. The lenses used were: EF 70-200 f2.8 L IS USM EF 24-105 f4 L EF 17-40 f4 L EF 24-70 f4 L EF 100mm f2.7 Macro USM EF 18-200 mm crop