オフショット
オフショット – ofushotto. lit. off shot. Refers to pictures taken behind-the-scenes that are not included with the official product. These could be pictures taken during breaks, off-angle shots done during production, or simply a sneak peek of the production process itself. Making (メイキング; meikingu) is a term you’ll often find used for videos of this type but it can be used for photos as well.
