Survey detection limits in L′-band contrast between the central star and any point source vs. the angular separation at the 5σ level using the VLT/NaCo in ADI mode. Solid lines are representative of median performances, whereas the bottom dashed lines are for the best performance reached by our survey. cADI (red) and LOCI (blue) are very similar, whereas sADI (orange) and rADI (aqua) remain slightly above the LOCI and cADI curves. The LOCI curves stop at 0.15 ″ because of the central exclusion area.