Canon's replacement for the SX170 ditches the superzoom compact styling and goes for an out and out DSLR look.Canon feels that the superzoom bridge camera is a really interesting area of the market at the moment, and that customers are looking for those really high zooms. It's certainly true that the bridge camera area seems to bucking the general downward trend of the compact camera market at the moment, probably because of the flexibility the zooms offer compared to a smartphone. While the SX170 was a flatter, compact style camera, it also only offered an 18x optical zoom, compared to the now 30x optical zoom offered by the SX400IS. Like several other Canon compacts, iSX400 IS is also equipped with ZoomPlus technology, boosting that up to 60x. With its 24mm wide angle zoom, the optical reach goes up to 720mm, or 1440mm if you include the digital zoom.