Change in multiplicative detection bias Δμ_det (with respect to μ(m_lim = 29)) for galaxies with 20 < m_AUTO < 24.5 as a function of m_lim, the magnitude of the faintest galaxies that are included in the simulation (black points). The dotted line shows the change in bias if we select galaxies based on their input magnitude (20 < m_input < 24.5). The change in multiplicative bias for the KSB algorithm is indicated by the light grey points. The hatched region indicates a tolerance of 10⁻⁴.