Top panel: photo-z scatter, middle panel: percentage of galaxies selected and bottom panel: percentage of catastrophic outliers for various choices of photometric apertures, using the full spec-z sample. The solid black, dotted red, long-dashed green lines show the results at pdz_best cut of 0, 0.5, 0.9. The optimal fixed aperture size is around 10–30 pixels. Isophotal photometry (long-dashed lines) performs close to equally well this range of fixed apertures. Automated Kron apertures (dash-dotted lines) are not competitive.
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