The Mark III edition of this Canon 1.4x Extender, or teleconverter, is the latest (and probably last) in the EF-mount series, designed for Canon cameras and compatible EF-mount Canon telephoto lenses.

As a 1.4x teleconverter, the focal length of the attached lens is magnified by a factor of 1.4x, with a 1 f/stop reduction in aperture rating, so a 70-200mm f/2.8 zoom effectively becomes roughly a ...

Canon have unveiled two lens extenders designed for its L-series range of new super-telephoto lenses. Designed for photojournalists, nature and sports photographers who need to get close to distant ...

Buying the right camera, lens, accessory or software to suit your photography is really important. Our product reviews offer independent views with hands-on opinion and honest verdicts aimed to give ...

Canon's EF 200-400 lens delivers terrific optics and unmatched zoom flexibility with an innovative built-in 1.4x telephoto extender. Stephen Shankland Former Principal Writer Stephen Shankland worked ...

Canon's two new EF extenders are direct replacements of the current extenders offered by Canon as essential accessories for professionals. These new extenders have been designed to provide faster ...