Depth of field
Get your aperture right for flattering portraits and blurred backdrops
Wide apertures restrict depth of field and ensure blurred backgrounds – but how wide do you need to go? Here, the difference between f/2 and f/5.6 is obvious. You might think f/5.6 – the typical maximum aperture of a standard kit lens – is fairly wide, but for beautiful blur it’s often not wide enough. This is why a prime lens with amuch wider maximum aperture is often used to shoot portraits (see page 112 for more on this).