What term defines the width to height ratio of an image, such as 16:9?

• A. Aspect Ratio
• B. Blimp
• C. 3:2 pull down
• D. 2-pop

Answer: (A)

The width-to-height relationship of a frame is called the aspect ratio. It describes how wide the image is relative to its height, so 16:9 means 16 units wide for every 9 units tall. This ratio stays constant across different resolutions, which is why both 1920x1080 and 1280x720 are 16:9; knowing the ratio helps you judge how the image will fill screens and whether you’ll see letterboxing or need to crop. In post, keeping or changing the aspect ratio affects framing and composition, cropping decisions, and delivery formats. The other terms don’t describe this proportional relationship: a blimp is camera housing for sound stages; 3:2 pull-down concerns converting film frames to video frames; 2-pop refers to an editing/audio artefact.