  The photon emission from the late stages of the dynamical evolution of
heavy-ion reactions at the highest RHIC and LHC energies is investigated. A
comparison between a calculation from hadronic rates from a fluid dynamic
evolution down to temperatures of 120 MeV and a full non-equilibrium hadronic
transport approach is performed. The photon yields are very similar in both
cases while the elliptic flow is slightly smaller in the non-equilibrium
scenario. This study is important, since it is crucial to apply the same
dynamical evolution model for hadronic and electromagnetic observables.
