Increase your lens' focal length by 2x without sacrificing image quality.
Ideal for press, sports and nature photography, the extender increases the
focal length of Canon L-series telephoto or telephoto zoom lens by a factor of
2x, with higher AF accuracy and improved communication between camera and lens.
Focal length extension for super-telephoto lenses
The Extender EF 2x III is specially designed to work in conjunction with
L-series IS super-telephoto lenses, extending their focal length by a factor of
2x. The extender's design ensures there is no loss of lens performance or image
Improved anti-reflection materials inside the lens-barrel and a coating
around the outer edges of the lens elements reduce flare. Construction is
resistant to dust and water, helping to maintain images quality.
Improved communication between lens and camera
A built in microprocessor provides accurate transfer of data from between
the lens and camera delivering an improved performance in AF and metering.
Compatible with L-Series telephoto and telephoto zoom lenses
The Extender EF 2x III is compatible with most telephoto and telephoto zoom
lenses within Canons flagship professional L-series range, extending the focal
length by 2 times while only reducing the effective aperture of the lens by two