Comparison of photometric and spectroscopic redshifts in Wide. Left: Photometric redshifts (from EAzY) versus Wide spectroscopic redshifts for targets in the AEGIS field constituting the first Wide data release. While many of the objects had accurate photo-z estimates (70% have ∣Δz/(1 + z)∣ values below 0.25), there is a significant benefit to obtaining precise redshifts from spectroscopy for many of our primary science cases. Center and right: Example PRISM spectra of objects with a discrepancy between z_phot and z_spec. The black line shows the best-fitting EAzY template at each of the redshifts, where the Wide-based spectroscopic redshifts are unequivocally correct.