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We present V and R photometry of the gravitationally lensed quasarsWFI2033-4723 and HE0047-1756. The data were taken by the MiNDSTEp collaborationwith the 1.54 m Danish telescope at the ESO La Silla observatory from 2008 to2012. Differential photometry has been carried out using the image subtractionmethod as implemented in the HOTPAnTS package, additionally using GALFIT forquasar photometry. The quasar WFI2033-4723 showed brightness variations oforder 0.5 mag in V and R during the campaign. The two lensed components ofquasar HE0047-1756 varied by 0.2-0.3 mag within five years. We provide, for thefirst time, an estimate of the time delay of component B with respect to A of$\Delta t= 7.6\pm1.8$ days for this object. We also find evidence for a secularevolution of the magnitude difference between components A and B in bothfilters, which we explain as due to a long-duration microlensing event. Finallywe find that both quasars WFI2033-4723 and HE0047-1756 become bluer whenbrighter, which is consistent with previous studies.

MiNDSTEp differential photometry of the gravitationally lensed quasars WFI2033-4723 and HE0047-1756: Microlensing and a new time delay