Comparison of ages (upper panels) and metallicities (lower panels) estimated using three different fitting methods on a subsample of 64 LEGA-C galaxies with various S/N randomly chosen from our sample of quiescent galaxies from LEGA-C. The fits are performed using a Calzetti reddening law ( Calzetti ), polynomials of degree 10 ( P(mdeg = 10) ), and a combination of a Calzetti reddening law and polynomials of degree 4 ( Calzetti + P (mdeg = 4) ). In each panel, the black line is the linear fit of the estimated values, while the red dashed and dotted lines are the 1σ and 2.6σ lines, respectively. The blue circles are the fitted values, while the green diamonds are the outliers. The magenta line in each panel is the one-to-one relation.