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 ...

Photo: Charlie Sorrel/Cult of Mac A few days ago, we learned about the iPhone’s shutter, the part of the camera that “opens and closes” to let light onto the sensor. Today, we’re taking an in-depth ...

Overview:  Variable aperture could give smartphones greater control over light and exposure.The technology may improve ...

Variable aperture is rumored for Apple’s next flagship, but what would it actually change about iPhone photography. Apple’s ...