Sony Releases a9 / a7R II / a7S II / a7 II Firmware Updates

Sony has just released a slew of firmware updates for its Alpha series mirrorless cameras, including a fix for the a9's premature overheating warning. Details are below.

Sony a9 Firmware v.1.01

• This utility updates the camera firmware to version 1.01 and improves the overheating warning functionality.

Download: Sony a9 Firmware v.1.01

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

Download: Sony a7R II Firmware v.4.0

• Adds the Auto Pwr OFF Temp function
• Improves operability of the camera:
• Improves operability when the AF area is set to flexible spot
• Adds Live View Display into custom button assignment
• Adds the Set File Name function
• Supports visible light LED with external flash for AF (HVL-F45RM External Flash)
• Improves release time lag when wireless flash is used
• Improves image quality when Long Exposure NR setting is ON
• Improves overall stability of the camera

Download: Sony a7S II Firmware v.3.0

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

Download: Sony a7 II Firmware v.4.0

B&H carries the Sony Alpha series of cameras.