Sony Alpha 7 IV Firmware Update Adds Lossless RAW and Better Eye AF

Sony Alpha 7 IV

Sony has announced firmware update v1. 1 for the Alpha 7 IV full-frame mirrorless camera that adds lossless compressed RAW in three sizes for still photos, shutter speed and ISO setting retention, touch shutter function, improved Eye AF, and more.

While the update looks promising, the launch was not without bumps. At the time of publication, Sony had already withdrawn the firmware update due to an error:

“It was confirmed that some products that updated may not operate properly in some cases. Distribution will be suspended until we can inform you of modified version,” the company says.

Sony didn’t provide any timeline for firmware’s final release. The firmware update will be available once it becomes available.

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The update’s most notable feature is the addition of three sizes of compressed lossless RAW: small, medium, and large. Sony claims that users have been asking for lossless compression raw since launch of their camera. This is especially true in the three file sizes. According to Sony, the large file preserves the same quality image as uncompressed RAW formats while significantly decreasing the file size. The medium and small size record less pixels than the large so that they can provide smaller RAW files.

The update allows flash photographers to keep ISO and shutter speeds for flash photography, as well as a Touch Shutter function. This update also claims that Eye AF’s accuracy has increased.

The update adds five additional features. First, thanks to firmware version 1. 1, the Alpha 7 IV can record the camera’s serial number directly into the metadata of video files. Sony claims that the new system has improved WiFi connectivity, although it did not provide any details. Thirdly, a new one-minute setting has been added to Power Save by Monitor menu. The Alpha 7 IV now also has the ability to brighten the viewfinder display depending on ambient light brightness. Finally, Sony says the update adds improved operational stability to the camera.

Firmware update version 1. 1 is executed via SD card or CFExpress card, and users will need to ensure the Alpha 7 IV is running or updated to Ver.1. 05 first before updating to version 1.1. Full instructions for download and installation can be found on Sony’s website.

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