An imaging apparatus controls a movement of a second lens unit to compensate for an image-plane movement due to a movement of a first lens unit when a captured image is zoomed by moving the first lens unit, and controls the movement of the second lens unit to be performed within a range selected from data based on second information corresponding to an object distance. The integrated circuit is used to reliably disconnect the power transistor in the event of overheating. The rod may be attached at the first rod end to the fan mounting head, and the second rod end may be exposed to retain a fan within the cut-out. This procedure is extremely versatile in that it makes the best logistic use of the material, resources and requisite assembly times since the assembly procedures for each section can be developed alongside each other in the different wind farm towers, and also greater heights can be achieved than is traditionally possible. The data module can provide the data to an operator of the vehicle, or to a remote management center, for storage andor further processing. The idea underlying the measuring arrangement is to adjust the bearing part relative to the bearing external part with an adjusting device and to measure the adjustment carried out with a measuring device.