The HDL-51 is gimbal installation or other special mount with restricted depth behind the lens. Shorter depth mechanical design(80mm) for flexible installation. Newly developed CMOS sensors are employed to achieve superb picture quality. CMOS sensors have wide dynamic range and, in principle, no smear. The sensors include significant circuitry within the sensor itself, resulting in a digital video interface between sensor and Ikegami camera DSP, all in a very small device with low power consumption.