A shallow depth of field makes subjects pop by blurring the background and focusing on the main element of a photo. Achieve a ...

And that is true enough. A wide-open aperture results in a shallow range of focus, and a small aperture gives you lots of depth, with almost everything in focus.

Throughout the history of photography ... challenging to keep the subject’s eyes in focus. Remember that there are different ways of achieving a shallow DOF beyond simply using lower f/stop ...