Vertical-axis R-band and i-band surface-brightness profiles versus the vertical distance z of models and measurements of the edge-on galaxy NGC 5907. a) Blue and purple lines show R-band profiles, and red lines i-band profiles. Model profiles are drawn with thick solid lines. Solid (dash-dotted) lines are profiles of convolved models using PSF_V,0m and PSF_i,0m (PSF_V,3m and PSF_i,3m), the purple line used PSF_K71. Three different symbols and error bars show measured values: •R band (Sackett et al. 1994; MBH94), ⋆V band (LFD96), and from profiles on both sides of the disc °6660 Å band (ZSS99). The R-band model was convolved with the measured PSF_MBH (including lower and upper errors) to produce the white line (cyan-coloured region). The lower limiting radius r₁₁₀ – where the convolved models using PSF_V,0m, PSF_i,0m, and PSF_K71 lie ≥ 10 per cent above the input model – is marked with a coloured bullet with a black border. b) Three colour profiles R − i are shown for: the model (thick solid line), the convolved model using PSF_V,0m and PSF_i,0m (solid line), and the convolved model using PSF_V,3m and PSF_i,3m (dash-dotted line).