Lightcurves of Sgr A* at NIR and sub-mm wavelengths for five days of the July 2007 campaign. The green, red, and blue datapoints of the upper panels represent the H, Ks, and L′-band NIR fluxes, respectively. Light red squares show Ks-band observations for which max(FWHM_x,FWHM_y) > 15 pixels ( ≈ 200 mas). The sub-mm lightcurve is shown below in black. One should bear in mind that the NIR observations were not all made in the same filter.