Same as Fig. 7 for a VLT aperture. The aperture was subject to a 1% binary erosion, i.e. undersizing the pupil and oversizing central obscuration, spiders and other pupil features by 1% of the aperture size, to accommodate a pupil misalignment. The general structure of the solutions is similar to the case of a clear aperture. The central obscuration increases the strength of the first Airy ring, thereby decreasing the throughput of these SCAR designs slightly. The relatively thin spiders have no influence on the throughput at these angular separations. In Table 1 we list the fixed and varied parameter in this figure. A summary of the throughput of all SCAR designs shown in this figure can be found in Fig. 9.