Viltrox EF-FX2 Focal Reducer With Autofocus Reviews
The Viltrox EF-FX2 AF Smart Adapter focal reducer is a welcome addition to the other “speedboosters” available for Fujifilm X, the Metabones Speedbooster and the Kipon Baveyes EF-FX AF 0.7x.
The reviewes so far are very positive, and make it look like a good option.
You can check pricing and specs at AmazonUS and BHphoto.
Down below a couple of youtube reviews: