wˈʌn tˈaɪp ʌv fˈɪlm ˈɛtʃɪŋ kɹiːˈeɪts lˈɛnzᵻz ðæt dᵻlˈɪbɚɹətli ɛɡzˈædʒɚɹˌeɪt ðɪs ˌæbɚɹˈeɪʃən, sˈɛpɚɹˌeɪɾɪŋ ðə kˈʌlɚz əvən ˈɪmɪdʒ ˌɪntʊ dˈɪfɹənt kənvˈɜːdʒəns pˈɔɪnts ɪnðə vˈɪʒuːəl fˈiːld.
One type of film etching creates lenses that deliberately exaggerate this aberration, separating the colors of an image into different convergence points in the visual field.