This JVC GY-HM850CHU ProHD compact shoulder mount camera has clocked 1898 hours. It doesn't come with an external power supply. One known issue is that the SDI output isn't working.

Using this JVC camera is easy. Just mount it on your shoulder and start shooting high - definition videos. Since it doesn't have an external power supply, make sure your battery is fully charged before use. When the SDI output is not working, don't worry. First, check all the cable connections. If the problem persists, it may need professional repair. To keep this camera in good shape, clean the lens regularly with a soft cloth. Store it in a dry and cool place when not in use. Also, be careful not to expose it to extreme temperatures or humidity.