While classical halogen silver materials are in infrared spectrum almost entirely insensitive, their spectral sensibility even in color and b & w panchromatic materials somewhere does not exceed around 690nm, limit of spectral sensitivity of human eye is somewhere between 700-720nm, sensitivity of conventional color CCD sensors greatly exceeds the threshold 780nm (1050-1100nm).
Wakati classical fedha vifaa ni halogen infrared wigo karibu katika Kabisa insensitive, umakini wao spectral hata katika Michezo na b & w vifaa Panchromatic haina Kisichozidi mahali fulani karibu 690n, kikomo ya unyeti spectral ya jicho binadamu ni mahali fulani Kati ya 700-720nm, unyeti wa rangi ya kawaida CCD sensorer sana unazidi kizingiti 780nm (1050-1100nm).