Quick Summary
The Viltrox EF-EOS M is an electronic lens mount adapter for using Canon EF and EF-S lenses on Canon EOS M mirrorless cameras. It is listed for EOS M1, M3, M5, M6, M10, M50, M50II and M100 models.
The adapter is designed to pass electronic functions, including autofocus support, aperture control and EXIF signal transmission. If you are choosing this type of adapter, the key check is whether your lens mount and EOS M camera body match the stated compatibility.
Key Details
| Detail | Verified information and buyer relevance |
|---|---|
| Product type | Electronic lens mount adapter for Canon EF and EF-S lenses. |
| Camera mount | Canon EOS-M / EF-M mount. Check this against your camera body before choosing. |
| Lens compatibility | Canon EF and EF-S lenses. Make sure the lens mount matches exactly. |
| Camera models | EOS M1, M3, M5, M6, M10, M50, M50II and M100. |
| Electronic functions | Autofocus, aperture control and EXIF signal transmission are stated features. |
What to Compare Before Buying
- Lens mount: This adapter is for Canon EF and EF-S lenses, so confirm your lens mount first.
- Camera body mount: It is for Canon EOS M / EF-M mirrorless bodies, so check the exact camera model.
- Electronic functions: Autofocus, aperture control and EXIF transmission are part of the stated design. Compare these against the way you plan to use the lens.
- Camera model: The listed body models are M1, M3, M5, M6, M10, M50, M50II and M100. Make sure your camera is one of them.
Compatibility, Size and Fit
This adapter is intended for Canon EF and EF-S lenses on Canon EOS M mirrorless camera bodies with EF-M mount. Compatibility is the main buying point, so check both sides of the fit before ordering. The product text names the supported EOS M models individually, which makes the exact camera body worth confirming.
Before You Decide
Confirm that your lens is Canon EF or EF-S and that your camera is one of the listed EOS M models. Check the mount on both the lens and body before choosing an offer, and make sure you want an electronic adapter rather than a simple mechanical ring.





