Depth of field is the distance range that appears acceptably sharp around the focused subject.
Decide whether to isolate a subject or show its surroundings clearly.
A smaller aperture generally expands this range. Focus distance and focal length also matter, so aperture alone does not describe the result.
Keep the camera and mug fixed; compare a wide aperture with a smaller opening while focusing on the same lettering.
Acceptable sharpness depends on how an image is viewed. The transition from sharp to blurred is gradual.
Follow a connection to understand how these ideas fit together.
Stopping down usually expands the range that appears acceptably sharp.
Conditions: Focus distance, focal length and viewing conditions are unchanged.
The focus distance sets where the acceptable-sharpness range is placed.
A shallow sharpness range helps make foreground or background blur visible.
Selective sharpness can direct attention to a subject within the frame.
Source check: . This records a check of the supporting references; it is not an expert endorsement.
Depth of field is the distance range that appears acceptably sharp around the focused subject.
A smaller aperture generally expands this range. Focus distance and focal length also matter, so aperture alone does not describe the result.