After months of rumours, Canon's big announcement day has finally arrived, with a raft of new PowerShot and EOS models and a handful of new accessories, We start with a couple of additions to the popular 'A' range of affordable digital compacts, the PowerShot A650 IS and PowerShot A720 IS, replacing the A640 and A710 IS respectively. The A650 IS boasts 12MP resolution, 6x optical zoom, vari-angle 2.5" screen and - in a welcome upgrade to the A640 IS - image stabilization. The A720 IS is a less dramatic upgrade, increasing resolution to 8.0MP, adding face detection and an optional underwater housing, and (like the A650 IS) upping the top sensitivity setting to ISO 1600.

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