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 ...

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 ...

Announced concurrently with the EOS R5 and EOS R6 cameras are two ground-breaking, lightweight and affordably-priced super telephoto RF lenses for enthusiast photographers. Canon’s new RF 600mm f/11 ...

Very seldom do I catch myself uttering the word "genius" silently to myself as I'm reviewing a piece of equipment. I have to say, I had my doubts about the Remote Control Extender when it was first ...