It was clear from the outset that one can not expect miracles for this price. So that was it. The processing makes a good impression. However, the IR switch is so stiff that you have to move it with your fingernail. For setting the optimum focus you have to turn in 3 places. In older analog devices, there were only 2 settings. Until an object is sharp and looks in fair contrast, could be just 20 seconds. Unfortunately, the infrared light comes relatively bright even with this device. I do not want to blame the equipment. That seems to be systemic. Very positive is to assess that the device can be powered by AA batteries and also batteries.
