Results of the sl_fit modeling in the {R_Ein, β} (top), {R_Ein, μ} (middle), and {R_Ein, m_img} (bottom) subspaces for an ideal subtraction of the deflector. Three classes of systems are considered: “good lenses” defined by μ₀> 4 (pink), “average lenses” such that 2 <μ₀< 4 (green), and galaxies that are not lenses (black). Lines represent the empirical cuts applied to isolate lenses. They are defined in Eq. (7).