Use the Viltrox EF 1.4x Teleconverter for Canon EF to extend the reach of your telephoto lenses. This 1.4x teleconverter effectively increases the focal length of the attached lens by 40% while retaining autofocus and communication between the camera and the lens.

The teleconverter uses a seven- element, three-group optical design to maintain high sharpness and clarity, and the individual elements have been multi-coated to reduce flare and ghosting. This teleconverter is compatible with most EF-mount lenses that have a focal length of 100mm or longer.