Euclid VIS FWHM (in pixels) versus I_E apparent magnitude for objects confirmed by Euclid to be in the σ Orionis cluster sequence. Both the FWHM and I_E photometry values come from the ERO catalogue. Four objects were found to have FWHM values larger than the mean value of cluster members (more than 3 σ significance) and hence are considered as possible binaries that deserve further scrutiny. Two of them are benchmark objects, namely (S Ori 52 and S Ori 60), one is a known object (S Ori 38), and the faintest one is a new discovery (Euclid object of interest G).