The aperture stop of a photographic lens can be adjusted to control the amount of light reaching the film or image sensor. Typically, a fast shutter speed will require a larger aperture, and a slow shutter speed will require a smaller aperture, to ensure a perfect picture. Photographs: George Grinstead.
About the designer
Monika Koziol was MOO's senior graphic designer. She was raised in Poland, and graduated from London's Central Saint Martin College of Art with a BA in Graphic Design. Previously a freelance designer for publishing companies and charitable organizations, Monika loves everything simple and bold, and believes the definition of good design to be both sustainable and beautiful.