noun
undercranking; fast motion
Film technique where frames are captured at a slower rate than playback, resulting in accelerated motion. Also used to describe the effect itself.
このシーンはコマ落としで撮影されている。
This scene was shot using undercranking.
コマ落としを使うと、動きが速く見える。
Using fast motion makes the movement look faster.
Compound of コマ (frame) and 落とし (dropping), from the verb 落とす (to drop). Refers to 'dropping' frames during capture to create fast motion.