Sony developed a new 17.7MP CMOS sensor, it can capture video @ 120fps at a full 12 Bit resolution and 60 fps at 14 Bit. . This sensor size is 24.3 × 12.8mm (diagonal 27.5mm). The pixel pitch of 4.2 × 4.2μm.The new sensor production start date has not been disclosed.
source – dc.watch.impress.co.jp