This exposition takes a close look at the concepts of self-origination and mediation for a better understanding of the photographic image engendered by a flash of light and its natural radiation. Starting from my own artistic experiments with fulguric and cosmic rays, performed in cooperation with a lightning simulation lab in Oxfordshire (UK) and with the nuclear research centre CERN in Geneva (Switzerland), it puts forward a speculative approach that looks beyond static and traditional assumptions about what it entails to 'be photographic'.