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Viltrox EF-E II is a 0.71x autofocus lens adapter that mounts Canon EF lenses to Sony E-mount cameras, boosting aperture by 1 stop and reducing focal length.
Viltrox EF-E II 0.71x Autofocus Lens Adapter for Canon EF to Sony E-Mount
Product ID: 41409
SKU: 41409
Model: VILTROXEFEII
Ean: 6953400321968
Condition: New product
Manufacturer: Viltrox
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| Type of Product | Adapters for lens |
| Adapter is for cameras | Sony E |
| Adapter is for lenses | Canon EF |
Product details
Viltrox EF-E II Autofocus Lens Adapter
Compatibility and Functionality
The Viltrox EF-E II is an autofocus lens adapter designed to mount Canon EF lenses onto Sony E-mount camera bodies. It supports automatic focusing and aperture control, allowing seamless integration between Canon lenses and Sony mirrorless cameras.
Optical Features
- 0.71x Focal Length Reduction: The adapter reduces the effective focal length of the attached Canon EF lens to 0.71 times its original value. This feature enables APS-C (half-frame) Sony cameras to achieve a field of view closer to that of full-frame cameras.
- 1-Stop Aperture Boost: The adapter increases the lens aperture by one f-stop, allowing more light to reach the sensor. This enhances low-light performance and improves background blur (bokeh) effects.
Benefits
- Improved light transmission for better image quality and virtual background effects.
- Maintains autofocus and aperture adjustment functionality automatically when connected.
- Enables APS-C Sony cameras to capture images with a wider field of view similar to full-frame cameras.
Additional Information
The adapter is specifically engineered to preserve the automatic focusing and aperture control functions of Canon EF lenses when used on Sony E-mount cameras, ensuring smooth operation and compatibility.

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