Full SED of GN26, a source at z = 1.21 with S₁₀₀/S₂₄  ~  70. The far-IR part of the SED is derived from Herschel data and is overlaid with the best fit CE01 model. The mid-IR part of the SED is the observed IRS spectrum from Pope et al. (2008), that is also presented separately in the inset figure. We also show the optical/near-IR part of the SED along with the best fit BC03 model.