a friend replaced his old dahua ipc-hfw-4300 bullet 3mp 3.6mm camera with a dahua ipc-hdw4631c-a 6mp 3.6mm ..
he's quite disappointed though ..that the image coverage of the 6mp camera is a lot less than then 3mp camera (even though they are both 3.6mm lens).....(changing resolution of the 6mp...