Photography has undergone a remarkable transformation in the last half century. Steven Sasson developed the first digital camera for Eastman Kodak in the mid-'70s, but that model was larger than ...

How does aperture affect exposure? The key thing to learn is that changing your aperture value by a whole'stop' lets in double or half the amount of light, in just the same way that doubling or ...

The aperture is made up of mechanical blades that increases or decreases in size depending on the aperture you select. In humans, the iris is a thin, circular structure in the eye, responsible for ...