Interesting link thanks for posting. I was told back in the 1980's how this film was used to spot tanks as the trees went magenta and the tanks showed up green.
I used a couple of rolls in the 1980's myself when the film was still E4 and liked how it picked out the colours
IR Portrait by
Photo Utopia, on Flickr
The guy on the left is wearing black jumper with blue jeans and I like the almost china quality of the faces...