Photography blogger Lau offers a plain-English explanation of two of the most confusing concepts in photography: aperture and focal length. A highlight: Lenses with larger apertures are faster because ...

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 ...

Photography is full of fancy terms and complicated science, but we are here to explain it all to you in simpler terms. Today we are focusing on focal length. This term gets thrown around often, ...

If you want to get creative with your photography, and out of that all-too-tempting automatic mode, you'll need to get your head around a few key settings. We've already looked at ISO, and now it's ...

Focal length is the optical distance in millimeters between a camera lens and the sensor or film. It determines the height and width of the scene being captured, known as the "field of view." A prime ...

How to select the best focal length; Why wide-angle lenses?; Zoom or Prime?; Telephoto lenses; Focal length analysis; All the information you need to select the right lens for landscapes. A focal ...