Deutche Börse Prize winner captures conflict in infrared

I first was very sceptic if it’s real IR. Some characteristics are:
Sky is bright to IR-black according to the cam direction.
Plants are in a huge range of IR reflectance. Dark to bright.
Nylon and some synthetic cloths are IR-Bright. Even black nylon.

But then i read, it’s analog Film!
So very strange Wavelength shift. Nothing you can easily do with a digicam without hotmirror.
Br, Harold

Source Article from http://www.dpreview.com/news/2014/06/01/deutche-borse-prize-winner-captures-conflict-in-infrared