Fully stacked: Hands-on with Sony's RX100 IV and RX10 II
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Fully stacked: Hands-on with Sony's RX100 IV and RX10 II

Again, like its big brother, the RX100 IV is ergonomically identical to its predecessor. That means the same 24-70mm equivalent F1.8-2.8 zoom lens, and the same control logic. That new EVF is very welcome though - it still feels like magic when you pop up the tiny viewfinder. Sony claims that the contrast-detection AF system of the RX100 IV (shared with the RX10 II) has been upgraded over the previous-generation RX-series too, offering a response speed of 0.09 seconds.