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 has attempted to reinvent the super-telephoto lens with its lightweight, affordable RF 600mm F11 IS STM ($799.99). It's one of a pair of lenses of this type you won't find for any other camera ...

From lens focal lengths and fill-flash to portraits, macro or stunning landscapes there are techniques for everyone. Learn how to use metering, considering composition and shoot everything from ...

Why you can trust Space.com Our expert reviewers spend hours testing and comparing products and services so you can choose the best for you. Find out more about how we test and review products. The ...

The RF 800mm F11 IS STM ($999.99) is the bigger, longer lens of a pair of ultra-telephoto primes for Canon's full-frame mirrorless camera system. It sports an extremely long focal length, perfect for ...

The RF 800mm F11 IS STM ($999.99) is the bigger, longer lens of a pair of ultra-telephoto primes for Canon's full-frame mirrorless camera system. It sports an extremely long focal length, perfect for ...