Dereddened optical IPHAS, 2MASS, and GLIMPSE photometry for the IPHAS-selected A-type stars with 8 μm excesses (blue triangles with error bars denoting the 1σ photometric error of each measurement). For each star, the red solid line corresponds to the reference photospheric SED normalized to the K-band flux. The pink dotted line represents the blackbody that, added to the stellar SED, minimizes the χ ² fit to the data (solid green line). Only the 2MASS and GLIMPSE data points were included in the best-fitting routine.