The two pics are somewhat awkward to compare, jpg v png, almost monochrome v colour, differences in size. There is however a visible difference! My first impression was that the grainy picture looked like the image had been digitally zoomed, only part of the picture area being used. Cameras that have an optical zoom will use the full 1280x720. If the camera is 1280x720 and the digital zoom set for the camera is 5x, then the actual picture area used is 256x144. That is then enlarged to 1280x720 and looks fairly horrible. Does zooming ring a bell?
Edited by Nanobyte, 25 October 2012 - 09:18 PM.