\begin{table}%t2
\caption{Field F02: $K$-selected photometric sample.}          
\label{Nphot_maglim}      
\par
\small%\centerline
 {
\begin{tabular}{c c c c c c}        
\hline\hline                 
$K$$^a$ $\leq$ 19.0 & $K\leq$ 19.5& $K\leq$ 19.75& $K\leq$ 20.0& $K\leq$ 20.25 & $K\leq$ 20.5\\
 \hline
3608& 5152& 6180& 6399& 8857 & 10~615\\
\hline
\end{tabular}}
\medskip
$^a$ All K magnitudes are expressed in the Vega system. Magnitudes in the AB~system 
can be obtained by adding +1.84.
\end{table}