When there's a big distance between the things that look crisp and sharp, it's known as a wide or deep depth of field. When there's a short distance the depth of field is shallow or narrow.

It can be hard to keep track of all of them. Today, we want to go over one that gets used a lot: shallow depth of field. We'll review the definition, look at some examples, and talk about why ...

Our approach to extending the depth of field utilizes the concept of point spread function (PSF) engineering to greatly increase the axial range clearly imaged in a single exposure. The basic concept ...