Diffusion filters may be used to diffuse the light falling on the subject, or placed between the camera and the subject for a hazy effect.
dᵻfjˈuːʒən fˈɪltɚz mˈeɪ biː jˈuːzd tə dᵻfjˈuːz ðə lˈaɪt fˈɔːlɪŋ ɔnðə sˈʌbdʒɛkt, ɔːɹ plˈeɪst bᵻtwˌiːn ðə kˈæmɹə ænd ðə sˈʌbdʒɛkt fɚɹə hˈeɪzi ɪfˈɛkt.