The 12MP Canon Powershot SX20 IS is the successor to the SX10 IS but constitutes only a fairly minor upgrade. It is essentially the same camera (both have a 28-560mm equivalent lens) with a slightly increased megapixel count (12.1 vs 10 MP) and a new 720p HD video mode. Lens, screen and most other items on the spec sheet remain unchanged. As such, the camera is the latest incarnation of Canon's popular series of superzoom cameras that can trace its ancestry right back to the PowerShot S1 IS of 2004.