The Sony RX10 IV's full single-shot autofocus shutter lag when shooting the same target multiple times was incredibly fast for a long-zoom camera, and much faster than the Mark III's. The RX10 IV ...

Overall, excellent performance for a relatively fast 24-600mm equivalent f/2.4-4 lens. The Sony RX10 III's electronic viewfinder and LCD monitor both showed just over 100% coverage at wide angle ...