Sony a7R IV Firmware Update 1.20 Improves Video AF with the FE 12-24mm F2.8 GM lens

Sony a7R IV Firmware Update

Sony a7R IV Firmware Update 1.20 improves Video AF with the FE 12-24mm F2.8 GM lens and improves overall stability. As always, I recommend all users keep their firmware up to date even if you don’t plan to shoot video with the FE 12-24mm F2.8 GM lens. Sony always packs in a few things useful improvements under the heading of “Improves the overall stability of the camera”

UPDATE: (9/1/20) Sony a7R IV FW Update 1.20 is also required for Sony LA-EA5 lens adapter support.

Benefits and Improvements

• Improves the Auto Focus (AF) performance when recording movies with the FE 12-24mm F2.8 GM
• Improves the overall stability of the camera
• Provides Sony LA-EA5 lens adapter support

Previous Benefits and Improvements

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

File Name

ILCE-7RM4 System Software (Firmware) Update Ver. 1.20

File Version


Release Date


Download Links:

(Scroll to the bottom of the download page to select ‘Download without creating account’ to skip sign-in)


The latest Sony Firmware Updates are only compatible with Mac OS 10.13 – 10.15

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. Follow prompts to begin the firmware update. Make certain to follow instructions in the linked post below.

Before Updating Firmware Please Read:

Bulletproof Guide to Sony Camera Firmware Updates

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3 thoughts on “Sony a7R IV Firmware Update 1.20 Improves Video AF with the FE 12-24mm F2.8 GM lens”

  1. Pingback: Sony LA-EA5 A-mount Lens Adapter Review

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