The DS-02 makes fast, repetitive motion sequences that can no longer be perceived by the human eye visible. Flashes of light generated synchronously with the movement make the motion sequences appear as a seemingly stationary image. In this way, printing processes, vibrations and other events can be observed during operation. Continuous operation is possible for up to 2 hours without a break. The flash frequency is set via an adjusting wheel, but can also be entered with keys (+/-). The set flash frequency can be easily doubled and halved by pressing a button and read on the unit.