Metabones Canon EF Lens to Sony E Mount Smart Adapter (Mark IV)

Our thoughts

'This is a useful solution for anyone wishing to use Canon EF mount lenses on Sony’s full-frame mirrorless cameras without losing all-important lens functionality such as aperture control, autofocus or optical image stabilisation. Roughly the same size as a Canon EF 1.4x extender, it adds just 150g in weight to camera setups, has an on/off switch to control the camera’s in-body stabilisation and supports most autofocus functionality on Sony A7-series cameras, including real-time Eye AF. Users shouldn’t expect EF-mount autofocus lenses to focus as fast on a Sony camera as they do on a native Canon body. Generally speaking, autofocus response is adequate for subjects that don’t move quickly or are erratic in their behavior.'  

The details

Electronic aperture, EXIF, image stabilisation, autofocus

This Smart AdapterTM has the following features:

• True electronic integration of aperture diaphragm – let the camera automatically choose the aperture in P or S exposure modes, or dial in the settings yourself on the camera body in A or M modes.

• Powered by camera body. No external power source required.

• Wide open button (opposite of depth-of-field preview function) makes manual focusing easy.

• The tripod foot is detachable

• High performance 32-bit processor and efficient switched-mode power supply

Enhancement on MARK IV vs. MARK III:
The new design of inner housing in MARK IV has a bigger inner hole – improving the Tilt shift lens preformance. 
The inner hole is painted with matt coating. This can further reduce the internal reflection.

For more details, please have a look at Metabones website.