Thanks to the back-illuminated sensor and BIONZ XR processor, the A7S III’s high ISO 80-102400 (extended to ISO 40-409600) makes a winning combination for shooting professional productions. It also boasts fast 10 fps continuous shooting for up to 1000 consecutive raw frames.
The 5-axis SteadyShot INSIDE sensor-shift image stabilisation minimises the appearance of camera shake by up to 5.5 stops, which is a one-stop improvement on the a7S II.
Changes to the physical design include a 3-inch rear LCD touchscreen with a side-open articulating design and a major resolution boost from a 2.30-dot OLED electronic viewfinder (EVF) on the a7S II to a 9.44m-dot OLED EVF, making the new Sony A7S II useful for producing smooth transitions between focus areas.
Memory card slots
Dual memory card slots both support working with CFexpress Type A or SD UHS-II memory cards for flexible and high-speed file storage, whereas the a7S II only has one SD card slot.