As illustrated in Japanese Unexamined Patent Publication No. 2005-181438, in performing bounced light photography, a flash device having a flashlight-irradiating unit 2 on the upper part of a flash device main body 1 can be mounted on an accessory shoe provided on an upper part of the photographic apparatus, such as a digital still camera and an ordinary camera, as shown in FIGS. 1A and 1B, such t