rack focus; focus pull
Cinematographic technique of changing focus during a shot to shift attention between subjects. Used in film and video production.
このシーンではピント送りを使って、観客の視線を誘導している。
In this scene, they use a rack focus to guide the audience's gaze.
Compound of ピント (from Dutch 'brandpunt', meaning focus) and 送り (noun form of 送る, 'to send'), literally 'focus sending'.