Low energy fission of 234,235,236,238U and 237,238Np radioactive beams, provided by the GSI/FRS facility, has been studied using the R3B/SOFIA setup.The latter allows, on Trim Kit an event-by-event basis, to simultaneously identify, in terms of their mass and atomic numbers, the fissioning nucleus in coincidence with both fission fragments after Mens Jackets prompt-neutron emission.This presentation reports on new results on elemental, isobaric and isotopic yields.