Can anybody please explain what camera settings (aparture, iso, wb, ss) have to do with visual/film grammar?
I'm not able to state a conclusive definition for &quot;visual grammar&quot;, but I'd say camera settings have a quite relevant role on building it. Depth of field (aperture) is crucial for focusing on a subject; ISO may be used for obtaining a noisy image which can be used to say something (to look like an amateur, or a security camera, for instance); WB might be used for creating a specific environment (to look like morning, or some 70's tv imagery).
All these settings may have, therefore, a role on the way you tell a story. A good exercise would be to watch scenes you like and try to imagine the settings used, and why these were chosen.