Continuum images on the SO/PHI-HRT image plane of (a) remapped SDO/HMI and (b) SO/PHI-HRT data sets. The continuum intensity is normalized by its median value and shown between 0.5 and 1.2. In both panels, the isocontours of the SDO/HMI continuum intensity at [15.,25.,35.] × 10³ DN s⁻¹ (corresponding to [0.37, 0.62, 0.86] in normalized units) are drawn as solid blue lines. In panel b, the 400 G isoline of the SO/PHI-HRT |B_los| is drawn as a solid yellow line.