Soft band (0.5–2.0 keV) X-ray luminosity and redshift measurements of the clusters in the eFEDS field that satisfies the ℒ_det > 15 and ℒ_ext > 15 condition. Luminosities are measured within apertures of R₅₀₀- White solid curves are smoothed contours of the Lx − z data points and the color is proportional to the PDF of the hypothetical L_{x − z} distribution modeled as P(I,L_x,z) = P(I|Lx,z)P(Lx|z)P(z) (see Sect. 3.3 for the description of the model).