Photometry for DDO 52 as a representative example for the LITTLE THINGS galaxies. Top panel: r-band image with the concentric ellipses showing the annuli where the surface brightness is computed. The green regions are foreground sources that we mask during the derivation of the profile. The blue ellipse is drawn at the disc scale length. Bottom panel: surface brightness profile, normalised to the total light within the outermost ring. The thick dashed black line indicates the exponential fit, while the blue arrow indicates the exponential scale length.