Depth of field is the near to far sharpness in your pictures. A picture with shallow depth of field has only the main subject in focus, and everything in front of it and behind it is blurred. The opposite is a picture with deep depth of field, where everything is sharp from right up close […]
A focus distance calculation often used in landscape photography so that the far limit of the depth of field is at infinity. This extends the zone of sharpness – the depth of field – as far as possible towards the camera.