Sony α9 III

The Sony α9 III (model ILCE-9M3) is a professional full-frame mirrorless interchangeable-lens camera produced by Sony. It is the first full-frame camera to use a global shutter: An image sensor that features no rolling shutter. The camera was announced by Sony on 7 November 2023, alongside the Sony FE 300mm f/2.8 GM OSS prime telephoto lens. It was released in the Spring of 2024.

Overview
The α9 III features an image sensor with a global shutter, and the first full-frame camera to feature one. This enables it to take still images and videos without any rolling shutter. It also allows it to sync to flashes at any shutter speed, up to its minimum shutter speed of 1/80000 second. This is in contrast to mechanical or electronic rolling shutters that have a longer minimum flash sync speed than the camera's minimum shutter speed. However, due to the increased circuitry required, global shutter sensors do not typically perform as well as rolling shutter sensors in low light performance and dynamic range. The α9 III has a base ISO speed of 250, higher than the α9 II's base ISO speed of 100.

The α9 III can shoot 14-bit RAW image format pictures at 120 fps, with real time autofocus and a 192-photo buffer. It also features functionality to pre-capture a second of photos before the shutter is fully pressed, and a button to temporarily boost image burst rate while shooting. It can shoot video at 4K resolution at up to 120 fps without a sensor crop. It has a 9.44 million dot viewfinder with a 0.9× magnification, the same as the one in the Sony α7R V. It also features the same 2 million dot tilt-and-articulating rear screen as the one in the α7R V, as well as a "dedicated AI processing unit" for autofocus subject recognition.

An optional battery grip was announced alongside the α9 III, the VG-C5. Sony claims that grip battery performance was improved by 15% by discharging its two batteries simultaneously instead of one at a time.

The α9 III was announced with a retail price of US$6,000, $1,500 higher than the α9 II.

History
The α9 III was announced at Sony's Creative Space 2023 event on 7 November in New York City, following the 10-year anniversary of Sony's first full-frame mirrorless camera, the Sony α7. It was announced together with the Sony FE 300mm f/2.8 GM OSS prime telephoto lens. Sony gave reviewers an opportunity to test the camera at the indoor Chelsea Piers fitness center.

It is planned to release in Spring 2024. Photo equipment retailers list estimated ship or availability dates from 23 February to 28 February 2024.

Reception
Pre-release reception was positive. The introduction of a global shutter to a full-frame mirrorless camera was praised, with it being called a game changer for photography. Chris Niccolls of PetaPixel wrote that "There have only been a few times in my reviewing career where I would, in all seriousness, call something an actual game-changer. This is certainly one of those moments." He praised the camera's fast shutter speed and its ability to use flash or strobe lights without limitation, predicting that it would "make quite a splash at the upcoming 2024 Olympic Games". James Artaius of Digital Camera World wrote that "[terms] like 'game changer' are banded about quite liberally these days, but honestly – this is a camera that will transform the way we use cameras." He called it "the most incredible sports camera I've ever used", praising the ability of the camera's autofocus system to keep up with high burst rates, despite encountering some hiccups. Jason Vinson of Fstoppers similarly praised the camera's flash sync capability and burst image features, while noting there was an "added hassle" to syncing third-party flash systems at higher shutter speeds.

While received positively overall, journalists expressed reservations at various elements of the camera ahead of its release. Niccolls noted the camera's base ISO of 250, and wrote that its impact couldn't be evaluated until RAW files could be analyzed at release. Artaius noted the autofocus system as his "one and only misgiving" with the camera, wondering if it would be improved at release. Jaron Schneider of PetaPixel criticized the lack of CFexpress 4.0 or CFexpress Type B support, with the camera's CFexpress 2.0 Type A slots imposing a bottleneck on buffer readout. Chris Gampat of The Phoblographer criticized its autofocus performance on subjects with darker skin tones in low light situations, comparing it unfavorably to the Nikon Z 9.