This is a combination of two frames; one taken normally and the other taken through a Hoya R72 Infra Red pass filter. The Luminosity channel was taken from the IR frame, the Hue and Saturation from the normal photo. Water comes out dark in an IR photo, while foliage comes out very light. The camera used was a Canon EOS D30. This camera, like all EOS digital cameras has excellent colour rendition for daylight photos. To get the good colour rendition Canon uses an Infra Red blocking filter that has a very severe cutoff in the deep red, thus passing through very little Infra Red and thereby necessitating very long exposures when an R72 filter is used, even in bright sunshine. Fast exposures are possible when the IR blocker is removed. See next slide.