\begin{table}%t2 \caption{\label{t_morph}Bar fractions per Hubble type for bright and faint subsamples.} \small%\centerline { \begin{tabular}{c c c} \hline \hline Hubble & \multicolumn{2}{c}{Bar fraction (Number of objects)} \\ type & $<$$-21.0$ mag & $\ge$$-21.0$ mag \\ \hline S0 & $14\%$ (44) & $6\%$ (89) \\ Sa & $21\%$ (121) & $11\%$ (180) \\ Sb & $40\%$ (117) & $31\%$ (151) \\ Sc & $32\%$ (59) & $38\%$ (135) \\ \hline \end{tabular}} \medskip Notes: the table shows results for 896 objects in the range $0.4