Sony a9 III

7Share
Sony a9 III: World’s first full-frame mirrorless camera with global shutter

Sony has delivered the world’s first mirrorless camera with a full-frame global shutter sensor: the a9 III. This revolutionary release promises unrivaled speed thanks to the capabilities of the newly designed 24.6MP Exmor RS CMOS sensor, including 120 fps continuous shooting with AF/AE, flash sync at all speeds up to 1/80,000 sec., and no subject distortion. Sports, wildlife, and action photographers will never miss a moment when using the a9 III. Also, the FE 300mm f/2.8 GM OSS has been officially revealed. This premier telephoto prime offers phenomenal image quality in a relatively lightweight package.

Sony Alpha a9 III Mirrorless CameraSony FE 300mm f/2.8 GM OSS Lens

a9 III Quick Look

Highlights

24.6MP Full-Frame Global Shutter CMOS Sensor

Up to 120 fps Raw Continuous Shooting with AF/AE

Pre-Capture Function; Speed Boost Button

Flash Sync at Any Shutter Speed; Up to 1/80,000 Sec.

Up to 4K 120p 10-bit Video; S-Log3 & S-Cinetone

759-Point Phase-Detect AF with Real-time Tracking

8-Stop 5-Axis In-Body Image Stabilization

9.44m-dot 0.9x OLED EVF with up to 240 Hz Refresh Rate

3.2” 2.1m-dot 4-Axis Multi-Angle Touchscreen LCD

Dual CFexpress Type A/SD Card Slots

Global Shutter—A First for Mirrorless

A first for mirrorless cameras, the a9 III sports a 24.6MP full-frame global shutter stacked BSI CMOS sensor. Compared to conventional rolling shutters, the global shutter provides significantly faster performance that is void of motion distortions, supports blazing fast continuous shooting speeds up to 120 fps, and offers shutter speeds up to 1/80,000 sec. with flash sync at all shutter speeds. This revolutionary design stands to benefit sports, wildlife, news, and event imagemakers, as well as commercial and editorial shooters, looking for a creative advantage when working with high-speed subjects or in difficult lighting conditions.

Shutter Features

Paired with BIONZ XR processing, the global shutter design enables recording full-resolution 14-bit raw stills at up to 120 fps. This system maintains full-time AF and AE performance along with blackout-free viewing for great accuracy and subject tracking.

The a9 III introduces Pre-Capture mode, which supports continuous shooting for up to 1 full second before capture by half-pressing the shutter button. Also new is a Speed Boost function, which can be assigned to a custom button to enable instant switching between different continuous shooting rate—begin shooting a burst at 10 fps and then instantly switch over to 120 fps to capture peak action in all its glory.

Beyond fast continuous shooting, the global shutter design, by nature, also enables flash sync at all shutter speeds, up to 1/80,000 sec. And a variable shutter speed mode makes the a9 III’s capture completely flicker free to suit photographing indoor activities at high speed.

Top-Notch 4K Video Recording

Beyond being a stellar stills camera, the a9 III boasts high-end video recording capabilities. The global shutter again delivers incredible, distortion-free results and present opportunities for high-speed shooting. The a9 III can record in 4K at up to 60 fps and will downsample from the full 6K image area. Slow motion is possible at up to 120 fps in 4K with no crop. All of this is available internally in 10-bit.

4K distortion-free movies with high resolution and detail

New to the a9 series is the implementation of Picture Profiles, including S-Log3 and S-Cinetone. For maximizing image quality and ensuring smooth workflow in post these profiles are essential. More advanced productions can even make use of the 16-bit raw output with an optional external recorded for realizing the full potential of the a9 III.

Autofocus, Image Stabilization, and Camera Design

Borrowing from the a7R V, the a9 III features an updated AI Processing Unit for refined, responsive, and intelligent subject tracking and detection. Using a 759-point phase-detection AF system, which covers 96% of the frame at sensitivities down to -5EV, the a9 III supports focusing at up to 120 fps for tracking fast-moving subjects with ease. The 5-axis in-body image stabilization system also receives a boost as it’s now capable of compensating for up to 8 stops of camera shake and improves viewfinder stability when framing with longer lenses.

Advanced optical 5-axis image stabilizationExcellent viewfinder specs and performance

Physically, the a9 III also sees an ergonomics update that makes the grip more comfortable and incorporates a new custom button on the front of the camera. The 9.44m-dot OLED EVF and 3.2” vari-angle touchscreen LCD are borrowed from the a7R V along with a robust and weather-sealed construction for working in inclement conditions. There is also a new sensor shield to protect the sensor while changing lenses.

Sony VG-C5 Vertical Grip

Announced alongside the camera is the VG-C5 Vertical Grip, which offers increased battery life and supports parallel power draw between the in-camera battery and the one in the grip. The a9 III also offers a pair of CFexpress Type A/SD memory card slots; SD cards can be used with all recording modes but CFexpress Type A cards make the most of the camera’s continuous recording speeds.

a9 III Sample Photos

FE 300mm f/2.8 GM OSS

Lightweight Speed for Sports, News, Events, and More

The missing piece in Sony’s telephoto lineup, the FE 300mm f/2.8 GM OSS has the speed and reach many working pros look for when photographing the world’s biggest sporting events, along with a lightweight, nimble design for handheld use. Superior sharpness and clean rendering give this lens its G Master credentials, along with smooth bokeh thanks to an 11-blade circular diaphragm. Dual XD linear AF motors achieve fast and reliable focusing performance and Optical SteadyShot stabilization reduces the effects of camera shake.

B&H Live Event
Sony a9 III Live Event
Live Panel Discussion
Ended Wednesday, November 8, 2023
11:30 AM ET - 12:30 PM ET
Add to Calendar 2023-11-08 11:30:00 2023-11-08 11:30:00 B&H Live Event Live Panel Discussion Location B&H eXplora [email protected] America/New_York public

Save the Date!
Ended Wednesday, November 8, 2023
11:30 AM ET - 12:30 PM ET
Add to Calendar 2023-11-08 11:30:00 2023-11-08 11:30:00 B&H Live Event Live Panel Discussion Location B&H eXplora [email protected] America/New_York public

Comments

7 Comments

What is the ISO range?  I can't find it in the literature.

The Sony Alpha a9 III Mirrorless Digital Camera has a standard ISO range of ISO 250–25,600, with the ability to expand/boost the low ISO setting to 125 and to expand/boost the high ISO setting to 51,200.  When using the full [AUTO] exposure mode, the maximum possible ISO setting is reduced to ISO 12,800.

I usually freeze motion with my strobes. The images were sharper and colors more bold while also eliminating/minimizing ambient exposure. What will GS change since it can capture at the same speed as my light?

It is possible to get better results on the Sony a9iii with a global shutter while shooting with flash. The global shutter allows you to sync at any shutter speed. So, you can adjust the shutter speed to the ambient light you want. Much better than using flash with High-speed sync (HSS) 

Is it possible to use third-party lenses with adapters .  For instance, the Sigma line of lenses with their MC2 adapter?  And could you tell me what the raw file format is?

If the lens mount adapter you own or plan to purchase is designed to connect your native third-party lens mount onto the Sony E-mount, then yes, you may use said lens/lens mount adapter combination on the Sony Alpha a9 III Mirrorless Camera.  While I do not see an MC2 adapter from Sigma, if you own Sigma lenses designed for the Canon EF lens mount, the Sigma MC-11 Mount Converter/Lens Adapter (Sigma EF-Mount Lenses to Sony E)B&H # SIMC11C, will allow you to connect the Canon EF mount lenses onto the Sony E-mount used on the Sony Alpha a9 III Mirrorless Camera.  Likewise, if you own Sigma SA-mount lenses designed for use on Sigma cameras, the Sigma MC-11 Mount Converter/Lens Adapter (Sigma SA-Mount Lenses to Sony E)B&H # SIMC11S, will allow you to use your Sigma SA-mount lenses on the Sony Alpha a9 III Mirrorless Camera.  The camera should use Sony's proprietary .ARW Sony Alpha Raw file extension.