Visibility dispersed over wavelengths of the Mira variables of our sample. Models are plotted in full lines, observations in dashed lines, at the different projected baselines (see color legend). The stars are identified in the title. The six panels show R Lep dispersed visibilities at the baseline configuration D0-A1 a); D0-B2 b); H0-I1 c); and A1-G1 d), as also marked in the plot titles. R Vol dispersed visibilities are at the baseline configuration A1-G1 e) and A1-K0 f). Error bars are of the order of 10%, and a typical error-size bar is shown in gray in each panel, overlapping with the data at 8.5 μm. In panel a), the two models’ full lines are overlapping, as the two observations lines. In panel d), the two lines of the observations are overlapping, and the model at B_p = 79 also lies on top of them.