\begin{table}%t4
%\centering
\par
 {\footnotesize  \caption{\label{tab:5cam_comparison}Technical data of the images in Fig.~\ref{fig:5cam_comparison}.}
\begin{tabular}{c  c c c c}
\hline\hline
\noalign{\smallskip}
Imager     & Pixel & Measured          &   Exposure  & $m_{\rm lim}$ \\
           & scale & seeing [\arcsec]  &    time [s] &  [mag]    \\
\hline
 WFI     & 0.238 & 0.85 &   16~300 & 25.4  \\
 MEGACAM & 0.186 & 0.75 &   7200  & 25.9 \\
 FORS1   & 0.1   & 0.69 &   6000  & 26.5 \\
 SUSI2   & 0.0805& 0.91 &   11250 & 25.9 \\
 ACS     & 0.05  & n/a  &   5280  & 26.45 \\
\hline
\end{tabular} }
\end{table}