The 120-300mm f/2.8 APO EX DG HSM lens is the latest release from Sigma, offering a maximum aperture of f/2.8. Constructed from 18 elements in 16 groups, including four Special Low Dispersion (SLD) glass elements to decrease the effect of flare and ghosting. The lens also includes a Hyper-Sonic Motor, to speed up and reduce the sound of the auto-focusing. Also available are 1.4x and 2x EX APO Tele converters that change the focal length to 168-420mm f/4 and 240–600mm f/5.6 (respectively) and the lens can also accept filters. The 120-300mm f/2.8 APO EX DG HSM lens is available in Sigma, Canon and Nikon-D fittings for £1999.99, log onto www.sigma-imaging-uk.com or call 01707 329999 to find out more.