When I reviewed it earlier this year I found the RX10 to be an excellent shot getter – but it was also a shot loser as well due to the weak AVCHD implementation. Many of my images suffered from too much mud and a break-up of detail in certain situations. So this is very welcome news from Sony. The V2.0 RX10 firmware adds 50Mbit/s XAVC-S codec and just as excitingly 120fps for slow-mo, making the RX10 a…