"Wrapped in Blue," 1/2 page photograph, EOS Magazine, April-June 2008 issue

This photo was used to illustrate an article about how ISO, in conjunction with aperture and shutter speed, is used to adjust exposure.

Caption:
"The photographer used the lens aperture wide open at f4 to limit the depth-of-field, making the eyes the focal point of the image. She also needed a shutter speed of 1/200 second to avoid the effects of camera shake with the 105mm focal length. This meant setting an ISO speed of 320 on the EOS 5D camera."

About EOS Magazine:
EOS Magazine is a British-based quarterly subscription magazine for Canon EOS camera users, addressing 35mm film, Advanced Photo System, and digital photography. The 80-page full-color magazine is mailed to over 100 countries each quarter.

Ref: The Third Way (Wrapped in Blue)