Pic of the Week: St Andrew’s Cathedral, by David Hendry

For years I have been fascinated with infrared photography.

Digital cameras can be sensitive to infrared light as well as visible light.

Chlorophyll rich substances like grass and trees tend to reflect a lot of infrared light, rendering them very light, almost looking like snow.

The reflection of infrared by chlorophyll also allows scientists to assess the health of trees and other plants with satellite captured infrared images.

Infrared also generally makes the sky more dramatic and can see through haze.

Sony Alpha 100 with a Samyang 8mm fisheye lens, exposure 1/400sec at f/8 ISO 100.This photograph was the UK winner of a Sony Community Competition.