A lens focuses light onto the sensor of a digital camera and is critical to photography. To help you make an informed choice when buying or mounting an optic, we explain some of the most important ...

Why is 'depth of field' or 'depth of focus' greater with a smaller aperture on a camera or when the iris in your eye is closed down to a smaller pupil size? Ever since people first noticed that you ...

When it comes to high-end mobile photography, it’s impossible to escape the camera bump. But why? To understand, let’s dive a little deeper into the inner workings of the smartphone camera. Before ...