Viltrox EF-FX2 mount adapter allows Canon EF series lenses to be perfectly mounted on
Fuji X-mount mirrorless cameras. Focal length is multiplied by 0.71 based on the original
(equivalent focal length = focal length x 0.71), which helps enlarge 1 level aperture.
It is also built in 4 groups, 4pcs optical glasses. By adapter mounting it can achieve
functions of EXIF signal transmission, AF(autofocus) and adjustable aperture,etc.
Firmware upgrade is via the USB port.