What relationship is in play regarding slow & fast motion?

What relationship is in play regarding slow & fast motion?

• A. The balance of lens focal length and subject distance
• B. The number of frames recorded per second compared to the number of frames projected per second
• C. The color grading and LUT
• D. The sensor resolution

Answer: (B)

Frame rate is what controls slow versus fast motion. It’s all about how many frames you record per second compared to how many frames you play back per second. When you capture more frames per second than you project, there are more individual moments captured than you show in real time, so playing back at the same speed stretches those moments out and the action looks slower than real life. For example, recording at 120 fps and playing back at 24 fps makes movement appear five times slower. Conversely, if you record fewer frames per second than you display, the motion is compressed in time during playback, making it look faster. For instance, shooting at 24 fps but playing back at 120 fps speeds things up significantly. The other options—lens choice, color grading, or sensor resolution—do not determine how motion is represented over time.

Frame rate is what controls slow versus fast motion. It’s all about how many frames you record per second compared to how many frames you play back per second. When you capture more frames per second than you project, there are more individual moments captured than you show in real time, so playing back at the same speed stretches those moments out and the action looks slower than real life. For example, recording at 120 fps and playing back at 24 fps makes movement appear five times slower.

Conversely, if you record fewer frames per second than you display, the motion is compressed in time during playback, making it look faster. For instance, shooting at 24 fps but playing back at 120 fps speeds things up significantly. The other options—lens choice, color grading, or sensor resolution—do not determine how motion is represented over time.