F-Stop System and Exposure Triangle Integration Mastery Hub:

In the context of the "The Complete F-Stop & Exposure Triangle Fusion Course 2026," when aiming for a shallow depth of field to isolate a subject, which f-stop setting would be most critically aligned with the course's fusion principles, assuming sufficient light?

According to the "F-Stop System and Exposure Triangle Integration Mastery Hub: The," how does an increase in ISO, when other exposure triangle components are held constant, fundamentally alter the final image beyond just brightness?

During a critical fusion scenario discussed in "The Complete F-Stop & Exposure Triangle Fusion Course 2026," you're shooting a fast-moving subject in moderate light and want to freeze motion while achieving an acceptable depth of field. If you've set your ISO to a manageable level (e.g., 400) and your aperture to f/5.6 for a moderate depth of field, what shutter speed adjustment is *most* likely to be required to achieve a correct exposure and freeze the motion?