depth of field
- In photography, the distance in front of and behind the subject that appears to be in focus.
2013 July-August, Catherine Clabby, “Focus on Everything”, in American Scientist:
- Not long ago, it was difficult to produce photographs of tiny creatures with every part in focus. That’s because the lenses that are excellent at magnifying tiny subjects produce a narrow depth of field. A photo processing technique called focus stacking has changed that.