Art and power will go on as they have done,will make day out of night, time out of space, and space out of time.
-Ralph Waldo Emerson
The Canon 5D sensor is sensitive to photons in the the near-infrared, 720nm and above, using a near-opaque (almost black) infrared filter. Exposure takes long integration times, but we are rewarded with a view not usually seen.
-S.L.