HP’s corporate slogan is "HP invents", and when you look at the list of unique features incorporated into the design of the top-of-the-range 6.2 megapixel R717 you know it’s not kidding. Although from the outside it doesn’t look much different to many of the other compact digital cameras on the market, the R717 is packed with advanced technology designed to help you take better pictures. Considering the price tag of just £175, there’s more going on behind its sleek brushed steel face than many cameras costing twice as much.