Extend your focal length for extarodinary images
Working in partnership with your L-Series IS super telephoto lenses, you'll zoom in further for extraordinary detailed and powerful images.
Built for all environments
This extender boasts a coating around the outer edges of the lens elements to reduce flare.
Let the lens and camera do the talking
EF Extender 1.4x III's in-built microprocessor provides accurate transfer of data from the lens and camera every time, everywhere.
The perfect partner for all your L-Series telephoto lenses
This extender is compatible with most telephoto zoom lenses within Canon's L-series range for great choice of shot and location.
Picture Size - 35mm Full size
Lens Construction - 7 elements in 3 groups
Front Mount - Canon EF Mount (11 contacts)
Rear Mount - Canon EF Mount (7 contacts)
Dimensions - 72.0 x 27.2mm
Weight - 225g
Compatibility
This extender 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. AF compatibility also depends on the combination of the above lenses and DSLR body type.