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 ...

Just like with any 2x teleconverter, the focal length of the attached lens is doubled, with a consequent aperture reduction of two f/stops. As such, a 70-200mm f/2.8 zoom effectively becomes roughly a ...

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 has a lot riding on its first-ever full-frame mirrorless camera, the EOS R. Not only is it an important camera on its own, but it's the ambassador for Canon's all-new RF mount system. It isn't ...

Although its EOS R system gained traction with pros and enthusiasts, Canon's entry- to mid-level mirrorless ILCs haven't had quite the same level of mass-market success as its long-running EOS Rebel ...

Canon’s full-frame EOS R system may be less than a year old, but we’ve already gotten a good glimpse at the breadth it will cover. The EOS R launched in 2018 as a mid-upper tier model, followed ...