Firmware version 3.10 has now been released for the Sony a9.

You can download the firmware from Sony’s support site here.

Benefits and Improvements in Version 3.10?

  • Support of “SEL400F28GM”
  • Adds a [Silent priority] option to the [Aperture Drive in AF] setting in the menu.
    *Using the lens “SEL400F28GM”, when [Silent priority] is selected, the sound emitted by the aperture drive will be reduced. This is useful in shooting conditions where camera noise should be kept to a minimum. Note that Auto Focus may become slower when [Silent priority] is selected.

  • Other improvements
  • Improves the overall stability of the camera


Previous Firmware Versions

These firmware versions have since been superseded, they are included here for reference only.

Firmware Version 3.01

Corrects a symptom where, in some cases, the camera may not operate properly after updating the software to Ver. 3.00

  • For cameras which were updated to Ver. 3.00 and then to Ver. 3.01, the registered customised settings for the Fn (function) menu may be lost.
    In such a case, please customise the menu again to your preference by going to:
    [MENU]-[Camera Settings2]-[Function Menu Set]

The Ver. 3.01 software also includes the following updates from Ver. 3.00

Introduces support for the new lens “SEL400F28GM”

  • Optimisation of optical image stabilisation performance, and support for the new image stabilisation mode of the Lens (Mode 3).
    Addition of [Function Ring(Lens)] to the menu
  • *For SEL400F28GM, [APS-C S35/Full Frame Sel.] setting can be assigned to the Function Ring, in addition to [Power Focus].
  • Addition of [Aperture Drive in AF] to the menu
  • *With the SEL400F28GM, focus will not be locked even during continuous shooting at F-values greater than F11, under the following conditions: AF-C, electronic shutter, [Aperture Drive in AF] menu set to [Focus Priority]. Note that continuous shooting speed might be slow when F number is over F11.

Added function for professionals engaged in sports/news media:

  • Adds a [Write Serial Number] option (On/Off) to the menu, enabling or disabling the inclusion of the camera’s serial number in the Exif data

Improvements in auto focus performance and functionality

  • Improves tracking performance of moving subjects in AF-C mode
  • Improves auto focus speed in low light conditions
  • Adds [AF Track Sens] as a selectable option for custom key settings
  • Adds support for all focus areas when using the LA-EA3 mount adaptor (Options added to [Focus Area]: “Zone”, “Expand Flexible Spot” and “Lock-on AF”)

Improvements in flash control performance and functionality

  • Reduces the release time lag when shooting with a flash
  • Adds support for [Slow Sync.] and [Rear Sync.] when using a flash wirelessly
  • Adds support for white balance automatic correction, when using the colour filter of an external flash (HVL-F60RM)

Other improvements

  • Stabilises the release time lag when shooting in AF-C mode
  • Improves the overall stability of the camera

Firmware Version 3.00

The distribution of firmware version 3.0 for the a9 was suspended after reports of the a9 not working correctly in some cases. If the update has already been installed new icons may appear on the Function menu, these new icons will not work. To resolve this, please initialize the camera, or reset the Function menu.”

Version 3.00 provided the following benefits and improvements:

Added functions for professionals engaged in sports/news media:

  • Adds the Write Serial Number option (On/Off) to the menu for selecting your preference in writing the serial number to the Exif data

Improvements in auto focus performance and functionality:

  • Improves tracking performance of moving subjects in AF-C mode
  • Improves auto focus speed in low light
  • Adds AF Track Sens as a selectable option for custom key settings
  • Adds support for all focus areas when using LA-EA3 mount adaptor (Focus Area options added: Zone, Expand Flexible Spot, and Lock-on AF)

Improvements in flash control performance and functionality:

  • Reduced release time lag when shooting with flash
  • Adds support for Slow Sync and Rear Sync when using flash wirelessly
  • Adds support for white balance automatic correction when using color filter of external flash (HVL-F60RM)

Other Improvements:

  • Stabilized release time lag when shooting in AF-C mode
  • Improves overall stability of the camera

Firmware Version 2.00

Version 2.00 provided the following benefits and improvements:

Enhancements for Continuous AF performance:

  • Enhanced performance of continuous auto focus on moving subjects
  • Enhanced stability of the AF-C when zooming

Added functions for professionals engaged in sports/news media:

  • Adds the function to assign Protecting images to custom Key
  • Adds the function to transfer (FTP) protected files at once Note: Only for images protected using version 2.00 or higher.
  • Displays wired LAN MAC address
  • Inputs IPTC metadata to files Note: IPTC information must be created beforehand using the IPTC Metadata Preset software.
  • Inputs camera serial number to metadata

Other Improvements:

  • Improves operational stability
  • Improves accuracy of the overheating warning function

Firmware Version 1.10

Version 1.10 added the following:

  • Supports “Eye AF” function for A-mount lenses via the LA-EA3 mount adapter (This function is only for A-mount lenses which can adapt to 8 or 10 fps (maximum) tracking AF-C shooting.
  • Fixes an issue where RAW files may disappear when SDXC or microSDXC memory cards are used in certain smartphones (Raw data recorded by the ILCE-9 with firmware Ver. 1.00 or 1.01 could disappear. Please backup your raw data files, even if you’re updating the system software to Ver. 1.10.)
  • Improves the image quality and overall stability of the camera.
  • Adds TTL & HSS support for Profoto Air Remote TTL-S for Sony with Profoto B1, B1X, B2 & D2 flashes at shutter speeds up to 1/8000th of a second.



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