Canon Extender EF 1.4x III Teleconverter
Extender Cap E II
Lens Dust Cap E (Rear)
Lens Case LP811
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
The new Extender EF 1.4x III can multiply a lens’ focal length#by a factor of 1.4x, gearing up professionals and advanced amateurs to reach out further and shoot distant subjects without the bulky burden.
The Extender EF 1.4x III is constructed with three lens groups of seven elements. With the new optical design, chromatic aberration and color blurring around the subject edges commonly caused by magnification can be minimized. It is also made specially to bring out the best of the upcoming L-series super telephoto lenses like EF 300mm f/2.8L IS II USM and EF 400mm f/2.8L IS II USM, from outer design to optical compatibility, each and every part of the Extender is manufactured to complement telephoto shooting with longer reach and take image quality to a new level.
The Extender is built with a microcomputer^to enhance the transmission of focusing, metering and ID information among camera body, lens and extender. When combined with the upcoming L-series super telephoto lenses, the Extender enables higher autofocus accuracy compared to previous generations, ensuring users achieve perfectly sharp shots, even when capturing moving subjects.
Built with users’ feedback in mind, the Extender has been developed with exceptional built quality. By improving the lens lock pin and lens mount stopper pin with extra endurance, as well as a stronger support of seven screws on the camera side mount, a robust structure is achieved. Also, the foremost and rearmost lens surfaces of these extenders are treated with a Fluorine Coating which is highly oil-and water-repellent, so grease or water stains can be cleaned easily with a soft dry cloth, no solvents needed. What is more, with an excellent dust and drip resistance▲, the Extender ensures the best possible image quality in extreme shooting conditions.
# please refer to “Specification” page for compatible lenses details.
▲Use with EOS-1D Series, EOS-1V and dust-and-water proof lens, however it is not recommended for use under rain.
^Compatible with all EOS DSLR and EOS-1V SLR camera.
|Lens Construction||7 elements in 3 groups|
|Max. Length x Diameter (mm)||27.2 x 72mm|
|Compatible camera||All EOS DSLR and EOS-1V SLR|
^ Discontinued model
* Higher accuracy autofocus is supported with Extender EF 1.4x III.
# AF may not work precisely. Use Camera with the AF micro adjustment function to perform AF fine adjustment. If AF is significantly off on a camera with no AF micro adjustment function, use manual focus. For AF micro adjustment, please refer to the camera's instruction manual.
Δ: Auto Focus is available only with the centre AF point when using EOS-1Ds series, EOS-1D series or EOS-1V. With other EOS cameras only manual focus is available
O1: AF is possible using only the center AF point when using a multi-AF point EOS.
All data is based on Canon's standard testing methods. Subject to change without notice.