Photometric redshift as a function of the spectroscopic one for the 29 J1030 sources with spectroscopic redshift z_spec≥2. The black solid line marks the z_spec = z_phot relation, while the dashed lines contain the z_phot = z_spec±0.15(1+z_spec) region. Sources within this region are deemed to have a reliable photometric redshift. We note that all the outliers with z_phot< 1.2 are BL-AGN, a class of sources for which photometric redshifts are generally less reliable (see M21 for more details).