Canon EF 1.4x III Extender

The EF 1.4x III Extender is the third from Canon and has been designed to provide an increased focal length by a factor of 1.4x. The increased focal length combined with high autofocus accuracy of this improved extender, makes it perfect for press, sports and wildlife photographers. It's also dust and water resistant which means you can use this in adverse weather conditions. Furthermore, it features anti reflection materials and lens coatings which ultimately minimise ghosting and flare for the best possible image.