V-band isophotal contours of IC 4296 with distribution and ID number of the KMOS IFUs. Red squares are the inner IFUs with S/N > 10 per pixel used to measure the EW of the strongest line-strength indices. Black points are the outer IFUs with lower S/N. The shaded annuli are the radial bins considered to average the IFUs and construct the radial gradients of the line-strength indices. Image courtesy of the Carnegie-Irvine Galaxy Survey (CGS, Ho et al. 2011).