Viltrox EF-M2II Auto Focus Adapter for Canon EF to MFT

Viltrox EF-M2II Auto Focus Adapter – Compact Speed Booster for Canon EF Lenses

The Viltrox EF-M2II is a precision-engineered adapter that bridges Canon EF-mount lenses to Micro Four Thirds (MFT) camera bodies. It combines a 0.71× focal reducer with full auto focus capability, turning any compatible EF lens into a faster, lighter MFT setup.

• 0.71× focal reducer multiplies effective aperture by one full stop, delivering brighter viewfinder images and shallower depth of field
• Full auto focus support preserves the AF performance of Canon EF lenses on MFT bodies
• Ultra-lightweight aluminium body at just 270 g adds negligible weight to the lens setup
• 24-month manufacturer warranty provides long-term reliability and investment protection

What Sets the EF-M2II Apart

Unlike basic passive adapters, the EF-M2II actively maintains electronic communication between the Canon EF lens and the MFT camera body. The 0.71× reduction ratio is optically optimised for MFT sensors, meaning the lens projects a smaller image circle that matches the sensor size precisely — no vignetting, no quality loss.

Ideal For...

Photographers and videographers who own Canon EF lenses and want to use them on a Micro Four Thirds camera system. The adapter is particularly suited for run-and-gun video work and travel photography, where saving weight and gaining an extra stop of light make a tangible difference in the field.

Application of the Viltrox EF-M2II

1. Mount the Canon EF lens directly onto the adapter's EF mount side
2. Attach the MFT body to the rear of the adapter
3. The auto focus motor engages automatically when the camera powers on
4. Use the 0.71× reducer to gain one full stop of light and a wider effective aperture