ZhongYi Mitakon Lens Turbo Adapter V2 for Full-Frame Nikon F-Mount Lens to Fujifilm X-Mount APS-C Camera

Great fit for my Nikon Non AI lenses. Build quality is excellent. Stepless aperture ring moves smoothly. If you leave it wide open then adjust the aperture on the lens, it allows for using the standard clicking aperture stops on the lens, which is a nice feature. No major loss of quality in images, although I haven't done an in depth comparison of the lens with other adapters or on film.Overall, I am very pleased with this focal reducer!

I use this to adapt my Nikkor 55 F1.2 lens onto my X-PRO3. I love being able to utilize the full frame aspect of the lens and the extra stop of light essentially making the lens a F1.0 (exposure wise) doesn’t hurt either. With this lens and camera combination it really does feel similar to using my Nikon F3 with instant gratification.