Contact structures exhibiting resilience or compliance for a variety of electronic components are formed by bonding a free end of a wire to a substrate, configuring the wire into a wire stem having a springable shape, severing the wire stem, and overcoating the wire stem with at least one layer of a material chosen primarily for its structural characteristics. In one embodiment, the temporary substrate is an adhesive substrate, such as tape. The deceleration pulse amplitude is divided into two, and is supplied to the tracking actuator on two different occasions. The specific surface area of the catalyst is 70-150 m2g, the pore volume is 0. The operation apparatus which is used with a device for image-taking; comprises a display member which displays an information concerning a function of the device and a first operation switch for setting the function according to the information displayed on the display member.