principal photography

Noun

uncountable

(cinematography) The phase of film production during which the film is actually shot, as distinct from pre-production and post-production.

Japanese Meaning

映画製作において、実際に撮影が行われる主要な段階。プレプロダクション（準備段階）やポストプロダクション（後処理段階）とは区別される部分。

Production schedules were delayed after the lead actor fell ill just as principal photography was about to begin.

主演俳優が病気になり、本撮影が始まる直前に制作スケジュールが遅れました。

Sense（1）

(cinematography) The phase of film production during which the film is actually shot, as distinct from pre-production and post-production.