Feature Review: Autofocus for Video on the New Sony a7 III Mirrorless 4K Camera
Back-Button AF and Manual AF settings using a Sony Alpha A7 camera - YouTube
SONY A7 III Autofocus Settings - A Complete Guide to the AF menu settings - YouTube
Sony A7 III, A7R III, A9 Autofocus Settings - Mirrorless Comparison
Sony Alpha 7 IV | Full-Frame Mirrorless Camera with Sony 28-70 mm F3.5-5.6 Kit Lens ( 33MP, Real-time autofocus, 10 fps, 4K60p, Vari-angle touch screen, Large capacity Z battery ), Black: Amazon.co.uk: