Set of transmission curves 𝒯 = {ugrizY_EJ_EH_E} used for the Euclid mission (from left to right). The ugriz passbands are only fiducial, since different sets will be used by Euclid; those represented here are from SDSS. The Y_EJ_EH_E passbands are from NISP on board Euclid. Only the filter transmissions are shown, without atmospheric, telescope, and detector quantum efficiency effects.