Often billed as the ideal companion for a DSLR when its too big, heavy or inconvenient, the premium compact camera sector of the market is one that seems to continue to do well in an otherwise declining market.Premium compacts such as the Canon PowerShot G16 and Nikon Coolpix P7800 appeal to enthusiast photographers because they allow full manual control and shoot in raw format. Canon's G series has long been considered the gold standard of premium compacts. The latest model, the G16, features a 12.1 million-pixel sensor and inbuilt Wi-Fi. It goes square on head to head with the Nikon P7800, which also features a 12.1 million pixel sensor, but comes with an integrated electronic viewfinder.Here we compare the two to see which is the better investment.Canon G16 vs Nikon P7800: Handling The G16 is easy to use, with menus arranged very sensibly with a number of direct access dials and buttons. On top of the camera, you'll find two dials, one for switching modes and another for adjusting exposure compensation.