For the vast majority of images it does not matter, but when shooting in low light conditions the camera's sensor able to record something that is completely invisible to the naked eye - Infrared Light.
Kwa wengi kubwa ya picha haijalishi, lakini Wakati risasi katika hali ya chini mwanga sensor kamera ya uweza wa kurekodi kitu Hiyo ni kabisa isiyoonekana kwa macho - Infrared Mwanga.