The newly released Fujifilm GFX camera has a sensor slightly larger than the standard 35mm full frame sensor. When full frame Canon or Nikon lenses are used with the Fujifilm GFX, there is a possibility that serious vignetting may occur, especially with wide angle lenses.

Our patented five elements in four groups optics system inside the Laowa Magic Format Converter (MFC) can enlarge the image circle of your Canon or Nikon full frame lens and allow it to be used with Fujifilm GFX cameras without vignetting.

The aperture dial on the Nikon F/G adapter is designed to provide aperture control for Nikon G-type lenses, which do not have an aperture ring. There is no such feature on the Canon mount.

This adapter has no electronic contacts, which means that the aperture and auto-focusing of Canon AF lenses may not work.