From Sony Japan (translated):
Information on digital single-lens camera a9 III paid customization service
Thank you for using Sony products.
We will begin offering a paid customization service to adjust the release stroke for the digital single-lens camera a9 III and a9 III compatible vertical grip VG-C5.
[Target product model name]
Digital single-lens camera a9 III “ILCE-9M3”
Vertical grip “VG-C5”
[Service start date]
Applications will start from Monday, April 15, 2024.
[Customization content]
Digital single-lens camera a9 III "ILCE-9M3"
Only full press (release) can be selected from 2 levels (default state, shallow).
Vertical position grip "VG-C5"
Only full press (release) can be selected from 2 levels (default state, shallow).
*For details on customization services, please refer to the support page.
[Customization fee]
Digital single-lens camera a9 III “ILCE-9M3”
14,000 yen (tax included)
Vertical grip “VG-C5”
14,000 yen (tax included)