Canon Extender EF 1.4x III User Reviews

Canon EF 1.4x III Extender . CANON's EF 1.4x III Extender is a useful accessory lens if you own (or are contemplating) one of the numerous lenses that it was designed to work with. I'd have liked to have mounted it to an EF 100mmL Macro lens but not all lenses are recessed at the rear to allow an Extender to fit. However, it will fit the 180mm Macro lens. That being said, the Extenders were made to suit telephoto lenses - but be sure to check before purchasing either a lens or an Extender to ...