Optical to MIR SED for GH500.30 (upper panel). The filled circles show the observed photometry, while the downward arrows indicate 1σ upper limits. The red curve shows the best-fit (maximum likelihood) SED based on BayeSED modeling, whilst the black curve represents the best-fit SED from FAST. We also plot the fit with an extremely dusty template (A_V = 9:8 and z_phot = 0:64) for comparison (gray curve). The HST H-band image is shown in the inset left panel. Insert right panel shows the χ₂ contours of redshift vs. dust extinction (A_V) from the FAST SED fittings. Lower panel: data to model ratios for the BayeSED fitting at z = 4:19 (black solid circles) and for the FAST SED fitting at z = 0:64 (gray solid circles). Only detected fluxes above 1 μm are shown.