Metabones Speed Booster ULTRA

Canon EF Lens to Sony E-Mount Adapter

Increase maximum aperture by 1 stop.

Makes lens 0.71x wider.

Powered by camera body. No external power source required.

The tripod foot is detachable 

Note:

When Speed Booster® ULTRA is used with Sony A7S, the camera will turn on the "APS-C Size Capture" mode automatically.