% only use the following if your dvi driver understands `landscape'
%\hbox{\special{landscape}}
\clearpage
\setcounter{figure}{3}
\begin{figure*}
\vspace{144mm}
\caption{Photometric comparisons in the overlap areas between the
fields. The differences between photometry of individual images from
different fields for the overlapping fields 52--51, 50--51, 50--28 and
30--29 are shown for the $B_{\rmn{J}}$ and $R$ wavebands. The axes are as
follows. Left-hand panels: $\Delta B$ ($-1$ to 1) against
$\langle B \rangle$ (13 to 21). Right-hand panels: $\Delta R$ ($-1$ to 1)
against $\langle R \rangle$ (12 to 20).}
\label{landfig}
\end{figure*}
