I heard a rumour that my camera could take infra-red pictures and
it turned out to be true! So I wandered down to the camera shop,
got myself an IR filter (Hoya R72) and had a quick play. Definitely,
produces some interesting results. And in particular, results that
can't be achieved any other way. For example, the sky in most of
these shots appeared to be nothing more than a plain white haze -
white clouds on a bright but very pale sky. In IR though, the
sky is much darker than the clouds.