Canon has today announced what it is calling a brother-sister pairing, in the shape of the PowerShot SD200 and PowerShot SD300. They are the first cameras to incorporate two UA (Ultra-high Refractive Index Glass Moulded (GMo) Aspherical lens) elements which has alllowed Canon to produced its smallest cameras to feature a 3x zoom. Both are SD compatible with the only main difference being the resolution; four million pixels (SD300) and 3.2 million pixels (SD200), priced 399 and 299 respectively.