The Canon Extender EF 1.4x III is ideal for press, sports and nature photography, this compact extender increases the focal length of Canon L-series telephoto or telephoto zoom lens’ by a factor of 1.4x, with higher AF accuracy and improved communication between camera and lens. The Extender EF 1.4x III is specially designed to work in conjunction with L-series IS super-telephoto lenses, extending their focal length by a factor of 1.4x. The extender's design ensures there is no loss of lens performance or image quality. Extender 1.4x III Focal length extension for super-telephoto lenses The Extender EF 1.4x III is specially designed to work in conjunction with L-series IS super-telephoto lenses, extending their focal length by a factor of 1.4x. The extender's design ensures there is no loss of lens performance or image quality. Canon Extender 1.4 x High-quality construction 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. Canon 1.4 x Extender 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 1.4x III is compatible with most telephoto and telephoto zoom lenses within Canon’s flagship professional L-series range, extending the focal length while only reducing the effective aperture of the lens by one stop. {Key Features} - Extends the master lens focal length by 1.4x - Outstanding image quality - Highly resistant to dust and water - Improved communication between lens and camera - Optimised lens coatings - Compatible with L-Series telephoto and telephoto zoom lenses This lens is only compatible with fixed focal length L-series lenses 135mm and over, as well as the EF 70-200/2.8L, EF 70-200/2.8L IS, EF 70-200/4L, and EF 100-400/4.5-5.6L. {Box Contents} - Canon Extender EF 1.4X III - Canon Extender Cap E II - Canon Lens Dust Cap E (Rear) - Canon Lens Case LP811
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