They commonly respond to 70 percent of the incident light (meaning a quantum efficiency of about 70 percent) making them far more efficient than photographic film, which captures only about 2 percent of the incident light.
CCD biasanya merespon 70% cahaya (sama dengan efisiensi kuantum sebesar 70%) membuatnya lebih efisien daripada film fotografi, yang hanya menangkap kira-kira 2% cahaya.