A method is provided for enhancing the repositioning of an excavating machine, including an excavating assemblage, from one set-up position to a next, subsequent set-up position. An image sensing device receives light focused by an imaging optical system and then photoelectrically converts the optical image into an image signal so as to output the image signal. An electronic control or trigger circuit is located on a wiring support. The recess has a closed shape when viewed in a plan view.