The comparison isn't quite on equal terms. Dragonfly 1 is sunlit for both cameras but dragonfly 2 is sunlit, as you can see from the shadow, for the 5DSR but not for the RX10. When both are sunlit, the difference is less. The £5,200 of gear weighing 2.7kg does outperform £1800 at 1.1kg - if it didn't, I'd be very miffed! But, the very high quality and 24-600mm zoom make the RX10 IV a great companion on a hike and as a complement to the Canon gear on a safari - you can track a beast from close up to far away.