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 ...

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 ...

We've spent a little time with the new Extender RF 1.4x and Extender RF 2x for Canon's full-frame mirrorless cameras, so ahead of our full review, check out our first impressions now... The Extender ...

Canon has unveiled two new super-telephoto prime lenses for full-frame mirrorless RF-mount cameras. The new Canon RF 800mm F5.6L IS USM and Canon RF 1200mm F8 L IS USM will both be available at the ...

NEW YORK, Feb. 23, 2022 /PRNewswire/ -- B&H is excited to announce two new lenses that put the "super" in super-telephoto: the RF 800mm f/5.6 L IS USM lens, and the RF 1200mm f/8 L IS USM lens for its ...

Canon has updated its range of super-telephoto lenses with two new optics that are designed to be used with mirrorless cameras, expanding the popular RF lens range with 800mm and 1200mm focal lengths.