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, ...

Indicates the magnification and angle-of-view of a lens. The human eye sees things roughly the same as a 43mm focal length of a lens for a 35mm camera. Anything shorter is classed as a wide-angle, ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. SEATTLE—Primes are single focal length lenses, which can be designed with a relatively few ...

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 ...