When using infra-red radiation to photograph the landscape one obtains incredible images: skies often record black, or very dark, and chlorophyll – deciduous trees and grass – almost 'glow' white. Normal photography does not record the infra-red wavelengths: modified digital cameras are required. For a more detailed description of infra-red photography see our “Infra-red” Gallery and “Medical Photography” section. In Namibia Gigi used a modified colour infra-red technique that retains some of the red frequencies creating a very surreal, almost ‘Martian’ landscape.