Sony's latest 35mm full-frame unit is the a7S III, making it the first launch in its sub-series since 2015. The OEM had promised an "all-new" design inside and out for this camera, and it has delivered. It has a new processor, image sensor and form-factor. Even the rear screen is new to its line - it is an LCD vari-angle panel that flips out to the side rather than upward, and is only found in the ZV-1 among Sony's cameras to date -.
In fact, the OEM has even re-arranged the menus in the a7S III's interface. This camera also brings Fast Hybrid auto-focus (AF) to the a7S line for the first time, which means it has both phase-detect (PDAF) and contrast-detect AF. It also features Sony's award-winning Eye AF and low-light-optimized AF.
In accordance with its leaks, the a7S III supports up to 4K/120fps, and can record RAW over HDMI too. Sony also asserts that its new heat-dissipating system allows it to push recording times to over an hour, albeit in its 4K/60p 10-bit 4:2:2 mode. It also comes with the rumored upgraded OLED electronic view-finder (EVF), which at a whopping 9.44 million dots is the highest-res in its category.
Another example of the new alpha-series' upgrades may be its charging port, which is now USB type C and supports Power Delivery (USB-PD), which may allow the user to record on external power for longer. The Sony a7SIII will be released in September 2020, and will cost US$3,499.99 through the OEM's authorized dealers.