Objects are fastened to object surfaces of a porous or fibrous material, in particular made of wood or a wood-like material, with the aid of a thermoplastic fastening film. The mating interface defines a plurality of receptacles spaced apart in more than one direction. The first pair of the siderails is coupled to the second section of the deck to move therewith. The image-pickup apparatus further comprises a control device for performing first-image pickup a predetermined number of times for performing the finder display and for performing second-image pickup for performing the focal-point detection every time the first-image pickup is performed the predetermined number of times.