Stokes profiles, normalised to the spatially averaged disk centre I_c, from the physical region that is encompassed by the single SO/PHI-FDT pixel at [0, 0] at μ = 1, as outlined by the black square in Fig. 3. First column: Stokes I/I_c, second column: Stokes V/I_c. From top row down: the original MURaM resolution, SO/PHI-HRT resolution, SDO/HMI resolution, SO/PHI-FDT resolution. The number of considered pixel(s) in this region for the original MURaM resolution are 1296, SO/PHI-HRT: 49, SDO/HMI: 4 and SO/PHI-FDT: 1. The average line-of-sight magnetic field of the pixels in this region, ⟨B_LOS⟩, is shown for each resolution.