A FAVOURITE of photojournalists and wedding, portrait and event photographers, the 70-200mm f/2.8 telephoto zoom lens has a reputation for good control over curvilinear distortion, as its available focal lengths are typically easier to correct. Further appeal comes from the constant, fast f/2.8 aperture throughout the entire focal range. The five lenses on test here, from Canon, Nikon, Sigma, Sony and Tamron, also come equipped with, or have access to, optical stabilisation, which makes handheld use possible even in low light and at telephoto settings.
While these lenses are all designed for use on a full-frame camera, those using the APS-C format will be able to enjoy a 105-300mm focal range (or 112-320mm when used with Canon APS-C-sized sensors). This extension makes this kind of lens ideal for more distant…