\begin{table}%t4 
\caption{\label{photdynamic}Bolometer readout saturation levels (high-gain setting).}       
\small      
%\centering
\par
\begin{tabular}{c c c}        
\hline\hline   \noalign{\smallskip}               
Filter &  Point source [Jy] & Extended source [GJy/sr]\\ 
\hline                         
   Blue    & 220  &  290     \\       
   Green & 510  &  350    \\
   Red    & 1125  &  300    \\ 
\hline                                 
\end{tabular} 
\end{table}