A mounting apparatus capable of coping with high density mounting, narrower pitch mounting, cavity mounting and the like. Even if a flange section of a barrel of a syringe has various thickness, the flange section is easily attached between the flange supporting section and the movable section, and although the attachment is easy, the flange section comes in pressure contact with the flange supporting section in the attached state. The image metadata decoding unit calculates a color temperature corresponding to the metadata.