Film Infrared

Infrared photography records wavelengths beyond human vision. Robert W. Wood made early IR photographs around 1910; living foliage often turns pale because leaves reflect near-infrared strongly, a behaviour later called the Wood effect.

False-colour infrared films such as Kodak's Aerochrome family were developed for aerial camouflage detection in the Second World War, mapping infrared to unexpected hues. Artists later adopted those pinks and crimsons for dreamlike landscapes and album covers.