\begin{table}%T3
%\centering
\par
\caption{Luminosity function
parameters and estimated absolute $K$~band luminosities and
mass-to-light ratios. Column 2: indicative radius within which the
LF and the {\it M/L}~ratio are measured; Col.~3: original passband in
which the LF is measured; Col.~4: LF characteristic magnitude~$M^{*}$ as measured in the original passband, Col.~5: $M^{*}$
k-corrected to the restframe $K_{\rm s}$ band ({\it F160W} was previously
corrected to $K_{\rm s}$ band by a factor $-0.5$); Col.~6: LF faint end
slope $\alpha$ (note that for Cl0910 $\alpha$ is unconstrained, and
the error on $M^{*}$ for this cluster is estimated assuming that
$-1.4< \alpha <-0.4 $); Col.~7: the total restframe $K_{\rm s}$
luminosity within the effective area listed in Col.~6 of Table~\ref{tab:data}; Col.~8: the restframe $K_{\rm s}$ band mass-to-light
ratio (the errors come from the errors on the projected mass and on
the total luminosity).  Note that for Cl1252 we report the total
luminosity and the {\it M/L}~ratio derived from both the LFs from this work
and from T04 (first and second value respectively).
\label{tab:LFs} }
    \begin{tabular}{@{}l l l l l l l l@{}}
\hline\hline
Cluster&$r$&Passband&$M^{*}_{\rm obs}$&$K^{*}_{\rm rest}$&$\alpha$&$L_{K_{\rm s},<r}$&$(M/L)_{K_{\rm s},<r}$\\
 &kpc & & AB mag&AB mag& &$10^{12}~ L_{\odot}$&$M_{\odot} / L_{\odot}$\\
\hline
RDCS J0910+5422&600&$K_{\rm s}$&$\rm 20.4^{+1.2}_{-1.1}$&$ -23.27$&$-0.85$&$\rm 10^{+8}_{-1}$&$\rm 40^{+20}_{-30}$ \\
RDCS J1252.9-2927&500&$K_{\rm s}$&$\rm 20.1^{+1.1}_{-1.2}$&$-23.89$&$\rm -0.95^{+0.35}_{-0.35}$&$ 18^{+5}_{-6} \div 14^{+3}_{-3}$&$\rm  13^{+5}_{-5} \div 16^{+5}_{-5}$   \\
RX J0848+4453&400&{\it F160W} ($\simeq$$H$)&$\rm 20.8^{+1}_{-1.6}$&$ \rm -23.76^{+1}_{-1.6}$&$\rm -1.15^{+0.4}_{-0.3}$ &$ \rm 4^{+2}_{-1}$&$\rm 35^{+25}_{-30}$ \\
composite LF & $-$ & $K_{\rm s}$ &$\rm 20.5^{+0.4}_{-1}$  & $\rm -23.41^{+0.4}_{-1}$&$\rm -1.0^{+0.2}_{-0.3}$& $-$ & $-$\\
\hline
     \end{tabular}
\end{table}