Notes. For the LABOCA and NIKA images, we detail the effective beam solid angles used to convert the images into units of MJy sr⁻¹, though we note that the Hi-GAL images are supplied in units of MJy sr⁻¹. The nominal wavelengths or frequencies recovered after colour correction are denoted in each case are denoted by an asterisk, and bandwidths are quoted in corresponding units. ^(a) We note that the 70 and 160 μm Hi-GAL images do not achieve the nominal beam size, but instead have PSFs that are elongated in the scan direction, and are measured to be 5.8′′ × 12.1′′ and 11.4′′ ×13.4′′, respectively. See Molinari et al. (2016) for more details. ^(b) We adopt the LABOCA total beam area for extended sources. See http://www.apex-telescope.org/bolometer/laboca/calibration/. ^(c) The PACS, SPIRE and LABOCA waveband edges are defined as half of the average in-band transmission (Siringo et al. 2009; Poglitsch et al. 2010; Swinyard et al. 2010). ^(d)The NIKA waveband edges contain ninety percent of the total transmission (Adam et al. 2014).