According to the present invention, a dish has a holding recess part provided with: a first portion comprising a tapered part in the vicinity of an opening; a second portion comprising a tubular portion having a vertical inner wall surface; a third portion comprising a tapered part serving as a ground surface for cells; and a fourth portion comprising a bottom plate having a discharge hole. This imaging method includes: a first step in which the dish is horizontally disposed at a predetermined position; a second step in which the height position of a predetermined shape feature part of the dish is recognized on the basis of focus information at the time the dish is imaged; a third step in which cells are sprayed from the upper surface side of the dish, precipitated along the first portion and the second portion, and grounded to the third portion; a fourth step in which the dish is imaged in a state in which cells are held in the holding recess part; and a fifth step in which the shapes of the cells are identi
