Sony has announced a swath of new Sony A9 firmware updates for some of its most popular Alpha cameras.

The new Sony A9 firmware update fixes an overheating issue and allows users to change the specifications for the overheating warning.

The Sony A6500 and A6300 firmware updates both add support for Sony’s new SEL100400GM lens. The A6500 firmware update also optimises image stabilisation performance in video mode.

The A6300 firmware update also a new ‘Auto Pwr OFF Temp’ function, which Sony describes as:

If the same part of your skin touches the camera for a long period of time while using the camera, even if the camera does not feel hot to you, it may cause symptoms of a low-temperature burn such as redness or blistering.

Pay special attention in the following situations and use a tripod, etc.

  • When using the camera in a hightemperature environment
  • When someone with poor circulation or impaired skin sensation uses the camera
  • When using the camera with the [Auto Pwr OFF Temp.] set to [High]

Per Mirrorless Rumors, updates for the Sony A7 range include:

Sony A7rII and A7sII

  • Adds “Auto Pwr OFF Temp.” function(*)
  • Improves operability of the camera:
  • Improves operability when AF area is set to flexible spot
  • Refer to here for details.
  • Adds “Live View Display” into custom button assignation
  • Adds “Set File Name” function
  • Supports visible light LED in external flash for AF (HVL-F45RM)
  • Improves release time lag when wireless flash is used
  • Optimizes exposure algorithm during focusing when [Live View Display] is [Setting Effect OFF]
  • Improves image quality when Long Exposure NR setting is OFF
  • Improves overall stability of the camera

Sony A7II

  • Improves operability of the camera
  • Improves operability when AF area is set to flexible spot
  • Adds “Live View Display” into custom button assignation
  • Adds “Set File Name” function
  • Supports visible light LED in external flash for AF (HVL-F45RM)
  • Improves release time lag when wireless flash is used
  • Improves overall stability of the camera

Where to download the Sony firmware updates

Sony A9
Sony A7R II
Sony A7S II
Sony A7 II
Sony A6500
Sony A6300

Sony A9 vs Sony A7 II: What are the Key Differences?