Notes. Notes on columns. In this work, we created post-processed observations of radiation hydrodynamic data generated with values of κ_R -hydro and matched those average opacities with a mix of wavelength- resolved opacities of more realistic dust mixes. To reach average low opacities, one can employ the nominal mix of large particles, or smaller particles, with the dust-to-gas f_DG ratio adjusted downwards, which is done for sims 2–4. Every mix is a scaled Draine (2003)-distribution, and has a certain major particle size, a_major , characterizing it. The large ‘L’ mix has a_major = 1 mm, the small ‘S’ mix a_major = 10 µm, and the ‘ISM’ mix a_major = 1 µm. ‘Early’-type simulations denote nominal densities. Higher dust-to-gas ratios are used in sims 5–9 to mimic dusty discs 100 times more massive than actually given in the simulations, called late simulations, as they represent a stage of late CPD accretion. Sims 8 and 9 employ additionally a temperature reduction to mimic late-stage cooling of the disc.