It is the beginning of October in Oslo, Norway and the leaves on the trees are dying and falling off, but at their own pace. Therefore, the IR film reflects many different magenta tones.
This photo is taken with Kodak Aerochrome medium format slide film. The camera is Fuji GS645 with an orange number 16 filter on the lens. The film was originally developed by Kodak during the Second World War for camouflage detection. It has later been used for aerial photography, astronomy, archaeology and forest surveys. The production of the film was discontinued in 2011, and today it is quite hard to find.