Examples of the radial surface brightness profiles and masked images of different bands, for a prototypical Type II break galaxy NGC 3346 (left panels), and more rare galaxy NGC 3846A with inner Type III and outer Type II break (right panels). The u-band data was excluded from analysis for NGC 3846A, because the radial profile could not be traced to large enough radius. The profiles at i, z and 3.6 μm are offset with the values indicated in the legend in order to separate the profiles. The profiles have been cut by r_out, while the r_in plotted here with vertical dot-dashed line is the same in all bands (see Sect. 2.4 for definitions). The grey area under each profile indicates the uncertainty due to over or under subtraction of the sky by σ_sky. The break radius (R_BR) in each band is plotted with a short vertical line segment, while the disc fits are plotted with hollow double-lines. In the images r_in is plotted with a black dot-dash line, R_BR with a red dashed line, and r_out with a solid white line. The images show surface brightness range μ = [17,27] ABmagarcsec^-2, and the x and y-axis scales are in arcseconds. Similar figures for all the galaxies are available at http://www.oulu.fi/astronomy/DISC_BREAKS/.