Corner plot showing the pairwise comparison of SED fitting output properties for J-PAS (teal circles) and SDSS (orange circles). In this analysis, all starburst and nebular components are included, and the Chabrier (2003) IMF is applied. Details of the grid parameters are provided in Appendix B. The 2D plots in the top right illustrate the comparison between J-PAS and SDSS in terms of the D_n(4000) index and stellar mass distribution. In addition, the stellar mass derived from SED fitting (from J-PAS and SDSS) is compared using the two following methods: Bell et al. (2003, labeled as B03) and García-Benito et al. (2019, labeled as GB19), both are based on the M/L ratio. The data used to generate this corner plot for both datasets are available on Zenodo (for further details, see Appendix E.6).