Polychromatic coronagraphic simulation for l_p = 2 with Δλ = 250 nm of spectral bandpass and a phase error of Δφ =  ± 0.001 radian for the vortex mask. We also include defects of our optical implementation. Left: without the speckle smearing. Right: with the Wollaston speckle smearing. The chromatic effect on the speckles is small in the two cases, the contrast remains high. The brightness scale is the same between the two images and is not linear.