Distribution of the number of observations in the q-band filter (N-obs) for the 2188 sdB candidates. The y-axis corresponds to the number of objects per N-obs bin and is represented on a logarithmic scale. The vertical dashed grey line indicates the cutoff at N-obs = 40 in MeerLICHT q-band observations. All objects to the right of this cutoff line are selected to be in our sdB candidate sample.