Booyah!! Sony Releases a9 Firmware Update 5.00

Sony’s Biggest Firmware Update Ever is Here! Sony a9 Firmware Update 5.00 adds a whopping 34 New Features including Real Time Tracking and Real Time Eye AF!

Benefits and Improvements from the Latest Update

This software update expands on the model’s already acclaimed AF performance and adds a host of new functions that further support shooting, viewing and customizing the camera. You can find below a summary of key highlights for this firmware update.

Added & Improved AF functions:

Real-time tracking function
Evolution of Eye AF function
Increased focal plane phase detection AF accuracy and expanded application range
Increased number of contrast AF frame divisions
Circulate focusing position setting
Added & Improved Shooting support functions:

Advanced dual slot functionality (Auto Switch Media)
Possibility to temporarily modify the function of the camera’s dials (My Dial Settings)
Illustration of the camera operation parts added to the custom key setting screen
Increased detection accuracy of peaking function and added blue peaking color
Rating function added for recorded still images
Display as Group – Recorded images can now be displayed by continuous shooting image groups
Support for simultaneous recording of proxy movies
Support for 1:1 image aspect ratio
Support for Imaging Edge Mobile, which enables remote control of the camera using a smartphone and the automatic transfer of images to the smartphone while recording
This software update also improves the operational stability of the camera:

Gradation reproducibility: If you want to develop RAW using Imaging Edge, the latest version of the Imaging Edge software is required.
Further improvements in general stability and performance


IMPORTANT: Note that once the update is installed, you cannot return to the previous version.

Initialization of the camera settings

All setting values of the camera are initialized because of an update that adds functions and makes major changes to the specifications. Even if camera settings for the camera’s system software (firmware) Ver.4.10 or earlier have been registered to the memory card using Memory (Camera Settings1 / Camera Settings2), those settings cannot be restored to a camera using system software (firmware) Ver.5.00 or later. We recommend you write down frequently used camera settings and other important information prior to executing the update.

Changes to the MENU configuration

Camera functions have been added and deleted, so the configuration of the setting items displayed when the MENU button is pressed has been changed accordingly. We recommend you check the MENU configuration prior to shooting.

Added functions and changes to specifications

Functions optimized for the shooting environment have been added. Accordingly, the function names and operation methods have been changed. In addition, some functions have been deleted. Be sure to check the change content details prior to installing the update.

Previous Benefits and Improvements

[All Previous Benefits and Improvements are also included in this Update]

File Name

ILCE-9 System Software (Firmware) Update Ver. 5.00

File Version


Release Date


Download Links:



All the latest Sony Firmware Updates are only compatible with Mac OS 10.12-10.14

You must first run UpdateSettingTool and follow the prompts to run it.
[UpdateSettingTool replaces Mac OS 10.13 Driver Loader from earlier firmware versions.]

1. Make sure the camera’s USB Connection is set to Mass Storage

2. WITHOUT CONNECTING THE CAMERA, Click on UpdateSettingTool.

3. Once you see this message, connect the camera.

4. When the above message goes away, click on the Resources Folder, click on “SystemSoftwareUpdater” and follow prompts to begin the firmware update.

Before Updating Firmware Please Read:

Bulletproof Guide to Sony Camera Firmware Updates

Order Sony a9 from B&H Photo | Amazon


Voigtlander Nokton 75mm F1.5 Aspherical E-Mount Lens Available for Pre-Order Now

Published: July 17, 2024 Voigtlander Nokton 75mm f/1.5 Aspherical Lens ($899) is a fast aperture, manual focus portrait-Length prime lens for Sony E-mount cameras. Optimized

Read More »
Sony Trade-in Deals Summer 2024

Sony Summer Trade-In Deals

Published: July 14, 2024 Get an extra trade-in bonus in addition to the value of your trade with Sony Trade-In Deals Now through 9/30/24. TRADE-IN

Read More »

Sony ZV-E10 II Available for Pre-Order NOW!

Published: July 11, 2024 Sony ZV-E10 II vlogging camera is available for Pre-Order NOW! Key Features: • 26MP APS-C Exmor R CMOS Sensor • UHD

Read More »

1 thought on “Booyah!! Sony Releases a9 Firmware Update 5.00”

  1. Pingback: What's New in Sony a9 Firmware Update 5.00

Leave a Comment

Your email address will not be published. Required fields are marked *