2D-power spectral density azimuthal averages. Comparison between the VLT UT3 primary mirror M1, the three TMs, and a sub-aperture tool polished off-axis parabola with a peak corresponding to the spatial frequency of the tool. The dashed line indicates an f^-2.5 PSD. The vertical dotted line indicates the AO corrected radius, showing that the high-contrast capacities of the instrument will not be limited by the TMs.