1.Compatible with YONGNUO and Canon EF/EF-S lens 

EF-E II adapter is used to mount YONGNUO and Canon EF/EF-S lens on Sony E mount camera, providing you more purchasing choices of lens ,which makes your own EF/EF-S lens more useful. 

2.Equipped with USB port, Improves Product Performance

Through USB upgrade firmware,you can analyze the lens data,which is easy to improve the performance of the adapter to fit more unknown lens models. 

3.Fn  Function Button,More Possibilities in the Future 

Equipped with Fn function ,which creates possibilities of realizing more practical functions in the future.Currently,the V0.*4 firmware has achieved the custom function settings of focus area,eye AF,focus magnifier, aperture preview and flash mode.

4.Supports Dual System Auto-focus,Equipped with Focusing System Option Switch*1

  Equipped with focusing system option switch （M?A）,allowing user to select their own

  auto-focusing system:hybrid focusing system,AF system.

5. Hybrid Focus M *2

Turn on the hybrid focus,when there is phase auto-focus ranging point in the auto-focus area,phase focus and contrast focus will be combined for auto-focusing,to provide faster and smoother auto focusing.

6.Phase-detection AF,Contrast-detection AF*2

Turn on AF system menu,you can select the focusing mode:phase-detection AF or contrast-detection AF through menu on the camera,the phase-detection AF speed is fast,the contrast-detection AF speed is relatively slow,but with higher precision,you can focus even in low light conditions. 

7.Compatible with Lens Image Stabilization Function

When the lens supports image stabilization function,through the EF-E II adapter,the image can still be stabilized perfectly.

8.Matte Surface Treatment for Light Extinction

The inner wall adopts matte surface treatment,compared with screw thread extinction,it has better effect,it can effectively avoid reflection caused by stray light.

9.High Precision Embedded Injection Molding Technique

The electronic contact for camera end adopts high precision embedded injection molding technique,which ensures the contact end face and the plastic are on the same plane,achieving seamless integration effect,thus reduces abrasion to the camera contact point,so as to keep the good communication with the camera.

*0.Gold-plated electronic contactQA

Equipped with gold-plated electronic contact,effectively improve signal conductivity and corrosion resistance,which keeps reliable communications between the camera and lens,achieving functions such as auto focus,iris control and EXIF information transfer.

*1.High-quality Metal Mount

Adopts high-quality metal mount,which fits the camera body perfectly,with abrasion and corrosion resistance,durable in use.

Note:

*1:Focusing System Switch Steps:

â‘ Turn off the camera,take down the adapter and lens from the camera,

â‘¡Set the on the adapter to A or M,

â‘¢Remount the adapter and lens on the camera,turn on the camera,

*2:this function has to be supported by camera and