In quickview display processing, a counter N is set to an initial value of 1, and a counter L is set to 4 times the counter N. Then, from a storage memory, the Lth frame of image data in frame data recorded by high-speed consecutive photographing is extracted, and an image based on this extracted image data is displayed by a display device. Consequently, by iteratively executing the processing according to this flowchart, the fourth, eighth, twelfth, etc., frames of image data are read from the frame data, and as a result of the displaying of the extracted image and passage of a redetermined time, images based on these read image data, being every fourth frame of the frame data, are displayed at a predetermined time interval by the display device.