20/20 : 2011

Photograph by

Mark Maio

About this image


Composite of 20 images of human irises. The colour and structure of the iris is as individual to a person as their fingerprints. Indeed, iris recognition is used in many security applications. The images were captured using a slit lamp camera – a flash passes through a thin directional slit to create a very narrow sheet of light that passes over the iris from the side and the image recorded on a Canon 50D digital SLR. The individual images were then assembled in an image editing program. Digital Institute for Science and Medicine, Alpharetta, Georgia, USA
All about Weather 2019
All about Weather 2019