Focal Length & Maximum Aperture
Magnification: 1.4x
Lens Construction
7 elements in 3 groups
Max. Diameter x Length, Weight
2.8 x 1.1 in, 7.9 oz. / 72.0 x 27.2mm, 225g
Note: 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.
Extending a lenses focal length by a factor of 1.4x, Extender EF 1.4X III incorporates phenomenal optical performance with minimal chromatic aberration and is a perfect complement to many of Canon super telephoto lenses. It features a built-in microcomputer for seamless communication among camera body, lens and extender; features careful lens placement and coatings to minimize ghosting and flare and even has a new Fluorine coating that keeps soiling, smears and fingerprints to a minimum. An integral part of many professional systems, Extender EF 1.4X III maintains high standards not only optically, but also in terms of rugged, dustproof and water resistant construction.
Compatibility
-- EF 100-400mm f/4.5-5.6L IS USM
-- EF 100-400mm f/4.5-5.6L IS USM Refurbished
-- EF 135mm f/2L USM
-- EF 135mm f/2L USM Refurbished
-- EF 180mm f/3.5L Macro USM
-- EF 180mm f/3.5L Macro USM Refurbished
-- EF 200mm f/2.8L II USM
-- EF 200mm f/2.8L II USM Refurbished
-- EF 200mm f/2L IS USM
-- EF 300 2.8 L USM
-- EF 300mm f/2.8L IS USM
-- EF 300mm f/4L IS USM
-- EF 300mm f/4L IS USM Refurbished
-- EF 400mm f/2.8L IS USM
-- EF 400mm f/4 DO IS USM
-- EF 400mm f/5.6L USM
-- EF 500mm f/4L IS USM
-- EF 600mm f/4L IS USM
-- EF 70-200mm f/2.8L IS USM
-- EF 70-200mm f/2.8L IS USM Refurbished
-- EF 70-200mm f/2.8L Refurbished
-- EF 70-200mm f/2.8L USM
-- EF 70-200mm f/4L IS USM
-- EF 70-200mm f/4L IS USM Refurbished
-- EF 70-200mm f/4L USM
-- EF 70-200mm f/4L USM Refurbished
-- EF 800mm f/5.6L IS USM