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, ...

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 ...

Replay: Do we really need to keep using 35mm as our baseline for focal lengths, or is there a much better way? Why do we keep reading descriptions like ‘3.7 mm to 92.5 mm (equivalent to 28.8 mm to 720 ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Knowing how much of your scene you can capture at each lens' focal length is a conundrum every ...

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 ...