Time was when CCTV cameras with CCD chips were always superior to those with CMOS chips. This is no longer necessarily the case. And with the advent of power-over-Ethernet cameras and with CMOS chips consuming just one-hundredth of the power of CCD chips, perhaps now is the time to reconsider.Read on at:
http://www.axis.com/products/video/camera/ccd_cmos.htm
http://electronics.howstuffworks.com/question362.htm
