Example of an isotropy check of the lensing potential. For one of our lensed maps, we evaluate the “raw lensing” estimator (i.e. that does not include any MC correction) for each patch, and take their mean. We represent the power map after N⁽⁰⁾ subtraction, and smoothed by an “a trous” transform, as in the upper right part of Fig. 6b.