150-600mm focal length (225-900mm equivalent on APS-C); F5-6.3 maximum aperture; 'Vibration Correction' optical image stabilization; 'UltraSonic Drive' autofocus motor ; Available in Canon EF, Nikon F and Sony Alpha mounts;

Tamron SP 150-600mm F/5-6.3 Di VC USD - £950 / $1070 (announced November 2013); Sigma 150-500mm F5-6.3 DG OS HSM - £740 / $ 870 (announced January 2008); Canon EF 100-400mm f/4.5-5.6L IS USM - £1255 / $1700 (announced November 1998); Nikon AF-S Nikkor 80-400mm f/4.5-5.6G ED VR - £1950 / $2700 (announced March 2013); Sony 70-400mm F4-5.6 G SSM II - £1600 / $2000 (announced February 2013);