For the \framed command, any value for the key align other
than a null value pushes the frame beyond the bottom margin on a
landscape page for many values of orientation. The following
MWE demonstrates this:
\setuppapersize [A4,landscape]
\starttext
\framed[orientation=90,align=no]{\externalfigure[dummy]}
\stoptext
It also seems that the default value of align is not
no as the wiki suggests, since there is a very different
result when no align key is provided and when it is provided as
above with no, if by a default value one means that, when a
given key is not explicitly provided, processing will occur as if it
had been provided with that particular value.
--
Rik Kabel