Different techniques can be used in photography. Learn about how to achieve different effects and the equipment involved, including making camera-less photographs.
Focus means how sharp the image is. This can be used to emphasise a certain point - for instance by focusing on an object close to the camera or further away. This can create meaning in an image.
A guide to using autofocus and manual focus
Depth of field
Depth of field means how much of the image is in focus. A photograph might have:
narrow depth of field, where only a small part of the image is in focus
larger depth of field, where everything is in focus
Depth of field is controlled by the aperture. A larger aperture means a narrower depth of field.