Comparison of the apparent motion of the average granule and the shrinking-Sun effect. Top: synthetic data with full spatial resolution; center: synthetic data convolved with the PSF from Couvidat et al. (2016); and bottom: HMI data (along the equator). We compare the motion of the average granule (blue triangles) with the LCT velocities of the nominal continuum images (black diamonds), and the LCT velocities when running the FLCT code directly on the average granule (red circles). When no error bars are shown, they are smaller than the symbol size.