This update (version 1.10) provides the following benefits:
- Improves image quality and overall stability of the camera
- Supports “Eye AF” function for A-mount lenses via the LA-EA3 mount adapter*1
- Fixes an issue where RAW files may disappear when SDXC or microSDXC memory cards are used in certain smartphones*2
*1: This function is only for A-mount lenses which can adapt to 8 or 10 fps (maximum) tracking AF-C shooting.
*2: 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.
Read more: Best Lenses for Sony a9.