VILTROX EF-NEX IV Adapter For Canon Lenses

The Chinese company Viltrox has announced a new EF-NEX IV adapter for the installation of Canon EF and EF-S optics on Sony E cameras. The new fifth generation adapter adds two main functions: built-in USB port for firmware upgrade and manual switch between CDAF modes (contrast focusing ) and PDAF (phase). In order for the camera to recognize the new autofocus mode, you need to unplug the adapter from the camera and reconnect it. The adapter allows you to record data EXIF, has support for lenses with image stabilizer.

Retail price of Viltrox EF-NEX IV is 159 USD (including shipping costs).”


Viltrox EF-NEX IV is designed for Canon EF Lenes to be used on Sony E mount series mirrorless cameras.

It is compatible with Sony A7 series full frame cameras, featuring funtions of Auto focus(PDAF&CDAF).

It can be upgraded by USB port.

Usage of Focus Mode Switch ( PDAF&CDAF ):

1.  Before using, please confirm the focus mode of the lens mount adapter, and then attach it on the camera.

2.  If you need to change the focus mode, please take the adapter ring off, slide  the focus mode switch,  and attach it on the camera then.


*    Gold-plated electronic contact, Auto-focus function,

*    Built-in metal electronic contact, precise focus

*    It can realize AF,adjustable aperture from camera body to lens’s aperture

*    More durable metal material

*    Compatible for all the EF-lens


Model EF-NEX IV adapter mount
Weight 174 g
Dimensions (W×H×D) 69×69×95mm
Size 66.6× 26mm
Material Quality plastics
Compatible camera Sony NEX-5C/C3/5N/F3/5R/6/7K/FS700VG20/VG900/A7 series
Compatible lens Canon EF Series lens
Included Items Extension Tube *1, Manual *1

Via viltroxdphotoworld

This entry was posted in 3rd Party Lens, Third party lenses and tagged , . Bookmark the permalink. Trackbacks are closed, but you can post a comment.
  • FCC disclosure statement: this post may contain affiliate links or promotions that do not cost readers anything but help keep this website alive. As an Amazon Associate I earn from qualifying purchases. Thanks for your support!