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    Sony's crazy expensive RX10 IV superzoom gets a speed boost

    by 
    Steve Dent
    Steve Dent
    09.12.2017

    Sony's camera theme over the last year has been "speed," especially with the arrival of its ultra-fast RX100 V compact. That notion continues today with the launch of the RX10 Mark IV, a 24-600mm f/2.4-f/4 superzoom, which gets a big shooting speed bump from 14 fps to a top-notch 24 fps. All that extra speed is thanks to the BionZ X image procesor mated to the RX-100 V's 1-inch, 20.1-megapixel Exmor RS CMOS stacked image sensor, which has a built in DRAM chip to buffer all those frames.