An f/1.8 aperture is wider than f/2.8, for example. Also read: What is aperture? How to use it to your advantage. Aperture has one main effect in photographs, which is changing the depth of field.

A wide aperture, small f-number, means only a small portion of the image is in focus, in what is called a shallow depth of field. At f/1.8, for example, the subject’s eyes may be in focus, but ...

Professional zooms may have a ‘constant’ maximum aperture of f/2.8 at any zoom setting (a handful have even wider apertures), but more affordable ‘consumer’ zooms are more likely to have a ...

Wide aperture lenses on smartphones let you blur out the background when shooting photos of close-up subjects. Simon Crisp/Gizmag. So we now know that a large aperture is desirable in a smartphone ...

A wider aperture like f/1.5 creates a bigger distinction between the parts of the image which are in focus or out of focus. This quality is often desirable in portrait-style photography where the ...

Variable aperture has been around since the mid-1800s, but only on dedicated cameras. Now it makes its smartphone debut on the Samsung Galaxy S9 and S9 Plus.

And widening my aperture to f/1.8 was a sure-fire way of keeping my ISO in check. But shooting wide open presents a string of other potential problems. Firstly, every lens has a sweet spot, an ...

The wide-angle lens being made for the iPhone 13 Pro Max is said to have an f/1.5 aperture, which is slightly wider than the f/1.6 one on the current iPhone 12 line-up.