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Viltrox Auto Focus Mount Adapter for Canon EF/EFS to (some)  Lens Used for some Sony and Full frame A7 Viltrox Auto Focus Mount Adapter for C...
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EF-NEX IV | Mount Adapter

High Electric Lens Mount Adapter Ring AF Auto Focus for Canon EF/EF-S Lens.

Key Features:

  • A9/A7R3/A7R2/A7M3/A7M2/A6500/A6300 camera body support PDAF or CDAF , A7R/A7S2/A7/A7S/NEX-7/A-6000/A5100 only support CDAF, please change focus mode before connect to camera
  • Integrated USB port for adapter firmware update. VILTROX Official Website will upgrade compatible lenses regularly
  • Built-in metal electronic contact, & generation focus system ,VILTROX EF-NEX IV lens adapter can achieve 50% speed improvement so as to get faster and more accurate focus than ever before
  • It can realize AF,adjustable aperture from camera body to lens's aperture
  • Compatible with Canon EF/EF-S lens. Please Note, Auto Focus DOES NOT support when shoot video

VILTROX EF-NEX IV is the fourth generation electronic adapter produced by VILTROX, two main features are added on EF-NEX IV:

  • Integrated USB port for adapter firmware update , VILTROX will update the firmware regularly.
  • Manual switch to change between CDAF and PDAF mode

USB port

Built-in USB port for firmware upgrade .


a) PDAF (phase detection auto focus ): Shorten the focus distance to speed up focusung process, focus speed is faster 
b) CDAF (contrast detection auto focus: By moving the lens glass to make the image in the focusing area clearner, focus success rate is higher.

Aperture control

Record EXIF data includes aperture, focal distance etc.

What's Included

Lens Mount Adapter
Extension Tube
Tripod Mount Adapter
2x Lens Caps


Questions & Answers

Viltrox Auto Focus Mount Adapter for Canon EF/EFS to (some) Lens Used for some Sony and Full frame A7

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