\begin{table}%t5
%\centering
\par
 {\footnotesize  \caption{\label{tab:l_over_w}Measured $l/w$ of the arcs shown in Fig.~\ref{fig:5cam_comparison}. }
\begin{tabular}{c   c c c c c c}
\hline\hline
\noalign{\smallskip}
Imager     & 1a & 1b & 1e  & 2a & 2b & 4a \\
\hline
 WFI     & 1.6 & 1.5 & 1.1 & 1.7 & 4.5 & 2.5\\
 MEGACAM & 2.0 & 1.5 & 1.9 & 1.8 & 5.0 & 2.5\\
 FORS1   & 1.8 & 1.4 & 1.7 & 1.5 & 4.9 & 2.6\\
 SUSI2   & 1.8 & 1.3 & 1.4 & 1.7 & 4.7 & 2.4\\
 ACS     & 2.6 & 3.1 & 3.8 & 4.3 & 8.1 & 7.4\\
BF & $0.69$ & $0.46$ & $0.40$ & $0.39$ & $0.59$ & $0.34$ \\
\hline
\end{tabular} }
\vspace*{-3mm}\end{table}