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 ...

It's a telephoto prime with a built-in teleconverter, letting photographers switch between two focal lengths in seconds. Here ...

Highlighting Canon’s ongoing commitment to the EOS R System and the RF Mount, today’s additions, alike the rest of the RF line-up, take advantage of the System – enabling photographers to experience ...

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 ...

This month will see the release of Canon’s EF 200-400mm f/4L IS USM Extender 1.4x lens, the first super-telephoto zoom lens to incorporate an internal extender. Side view of the new Canon’s EF ...

Alongside today’s launch of EOS R5 and EOS R6 – two cameras reimaginging mirrorless joining Canon’s revolutionary EOS R System – Canon Europe ( www.Canon-Europe.com ) reveals four new RF lenses and ...

We spend a day shooting aeroplanes with Andy Rouse to test the new Canon EF 200-400mm f/4L IS USM Extender 1.4x lens. The Canon EF 200-400mm f/4L IS USM Extender 1.4x is a professional quality ...