Normalized azimuthal average (left) and standard deviation (right) profiles as a function of angular separation for the imaging data (blue), the SLLC data (red), and the SLLC+FPM data (green) at 1593 nm. The saturated and unsaturated data overlap in the 0.20–0.25′′ range. The data with the FPM plane mask is also plotted starting at 0.25′′. For the standard deviation, only the values measured on the saturated data are plotted.