Depth of field is a key aspect of image quality in DSLRs and mirrorless cameras, and mastering it is essential to getting the look you want in your images. Here's what you need to know to achieve ...

Depth of field is controlled by changing the aperture setting on your camera. Like your eye, a camera lens has an iris inside that can open or close to let in more or less light.

BBC News 24. A deeper depth of field is used in this portrait of Jane Hill in the London BBC newsroom. The field isn't so deep that the newsroom's pin-sharp, distracting from the subject.

However, pressing the Depth of Field Preview button allows you to view the scene at the working aperture, so that you can see what areas will appear sharp.

The shallower depth of field associated with larger sensors is actually a product of longer lenses required to obtain the same field of view. Once a camera is selected and filming is underway, ...

Depth of field A measure of how much of a picture is in focus, from the nearest point in the scene to the camera that looks sharp, to the furthermost point that looks sharp.

Depth of field is a function of a lens' focal length and aperture settings and of the distance of the subject from the lens, Westfall explains. That's old hat to those familiar with photography.

Depth of field, or DOF, is the range between areas in an image that look sharp. It's easiest to think of it in terms of photos you are already familiar with.