Completeness for unresolved sources as a function of flux density and distance from the pointing centre, ρ, for the fields J0249-0759 (left) and J1232-0224 (right). The radially averaged 5σ curves (black lines) for the corresponding pointings are seen to follow the zone where completeness transitions from zero to one. Due to the presence of a strong central source in J1232-0224, completeness is lower in the central region of this pointing. Pixels with no sources in them have been coloured grey.