The mirror-less camera builds on its forbears, phasing out the mirror-based optical viewfinder of the SLR camera and adding an interchangeable lens mount, while keeping the light-weight feel of the compact camera.
The power of a large and heavy size super-telephoto lens is available on the compact body of the SP-720UZ, fitting in the palm of your hand, and making it the perfect companion for keeping baggage light on a trip.
The key advantage for OLED is that the panel itself emits light, eliminating the need for a light source behind it and keeping the overall structure very thin and light.