Comparison between Sérsic parameters of approximately 4000 simulated galaxies and their recovered values. Bottom plots show the fractional deviation of the parameters as a function of the half-light radius r_e in pixels, minor to major axis ratio b/a, and apparent magnitude m and Sérsic index n. The red line shows the median, whereas the blue line denotes the 1σ scatter around the median, defined to enclose 68% of the points at a given input value.