Ever see a photograph with a dreamy, out-of-focus background? Or perhaps a landscape with pin-sharp details from the closest foreground elements all the way to distant clouds? Aperture is what allows ...

Primed goes in-depth on the technobabble you hear on Engadget every day -- we dig deep into each topic's history and how it benefits our lives. You can follow the series here. Looking to suggest a ...

The aperture is made up of mechanical blades that increases or decreases in size depending on the aperture you select. In humans, the iris is a thin, circular structure in the eye, responsible for ...

What is depth of field? Understanding depth of field is one of the first big hurdles in photography. Knowing how your aperture, focal length and focusing work together to affect depth of field and ...

Higher end Canon cameras, such as digital SLRs, feature an aperture setting that allows you to control the sharpness of your images. The aperture setting can be customized to make an area of a photo ...

If you're getting started with portrait photography, one of the biggest questions is: what lens should I use for portraits? With the best portrait lenses coming in so many options – from affordable ...

As you might expect, you use Aperture-priority mode when you need to control the size of the opening through which light travels to reach the sensor -- usually to affect the depth of field -- but ...