Tom Jenkins, Guardian sports photographer, explains how he took his extraordinary shots of players at Wimbledon. ‘I had seen images taken by some landscape photographers with infrared and had seen how it rendered colours, especially greens, in a unique fashion.’ All Photos Tom Jenkins

Madison Keys of the US plays a backhand in her match with Camilla Georgi of Italy on court 3.Tom used a specially adapted camera rather than an infrared filter and old lenses, which increase the infrared effect.

Garbine Muguruza volleys during her victory over Angelique Kerber on court 2 on day seven. An infrared camera detects infrared radiation or energy (heat) and converts it into an electronic signal, which produces the image.

Francis Tiafoe of the US volleys during his victory over Robin Haase of Holland in his men’s singles first round match on court 5 on day two.

A men’s singles match on court 9. Infrared cameras are widely used by search and rescue teams and firefighters as well as in the military and in medicine.

Action on several courts on day two. These cameras can also be called thermographic cameras. They can often be used for forming images at night when nothing visible can be seen.