Spectral energy distribution of a star-forming galaxy in the ALHAMBRA survey. From left to right and top to bottom, the panel shows the SED of a galaxy randomly picked from the BJG₁, BJG₂, BJG₃, BJG₄, BJG₅, and BJG₆ samples. The filled green dots show the ALHAMBRA photometric data. The red line shows the model that minimizes the χ² found by iSEDfit, the minimum reduced χ² is indicated in the upper left corner, in addition to the BPZ photometric redshift. The black squares mark the ALHAMBRA photometry of the best model. The blue shading shows the universe of models, generated by iSEDfit (see Sect. 4.2), scaled by their reduced χ². The color bar indicates the reduced χ² scale.