The default frame rate of 24fps is widely used as the standard for which type of production?

• A. Still photography
• B. Motion pictures
• C. Live sports
• D. Animation

Answer: (B)

24 frames per second is the standard for motion pictures because it balances image quality, motion smoothness, and cost, and it aligns with historical cinema practices. When sound was added, studios needed a consistent frame rate to synchronize audio, and 24 fps became the economical choice that still produced acceptable motion with the typical 180-degree shutter, which yields the recognizable cinematic motion blur. This look helps deliver a film-like aesthetic that audiences associate with movies. Projectors in theaters have long been built to run at 24 fps, and that rate remains the default for feature films and many narrative productions. Other contexts use different frame rates: still photography isn’t a moving image at all, live sports often uses higher rates like 60 fps to capture fast action, and animation can be produced at various rates but commonly uses 24 fps when aiming for a filmic feel.