Test of the importance of various photometric bands for the fitting. The three plots are shown for the parameters age, A_V and stellar mass, from top to bottom. The x-axes show the value for each fit normalised to the value obtained with all filter passbands used (OGNS, black points). The y-axes show the value in each fit divided by the error bar on that value, indicating how well determined the value is. The various passbands included are UV/optical (“O”), grism (“G”), near-infrared (“N”) and Spitzer/Ch1 (“S”). The solid, dashed, and dotted line indicates the area within which points are within 1, 2, and 3σ of the OGNS value.