Wikipedia: the hyperfocal distance is the closest distance at which a lens can be focused while keeping objects at infinity acceptably sharp; that is, the focus distance with the maximum depth of field. When the lens is focused at this distance, all objects at distances from half of the hyperfocal distance out to infinity will be acceptably sharp.
The depth of field in a photo refers to the distance between the closest and farthest objects that appears acceptably sharp. Depth of field differs based on camera type, , and focusing distance. In addition, the viewing distance and print size can contribute to the perception of depth of field. Extended depth-of-focus (EDOF) is a new intraocular lens (IOL) technology in the treatment of presbyopia. In contrast to multifocal (MF) IOLs, EDOF lenses create a single elongated focal point, rather than several foci, to enhance depth of focus. In this way, EDOF IOLs aim to reduce photic phenomena, glare, and halos, which have been reported Depth of Field is a common post-processing effect that simulates the focus properties of a camera lens. In real-world applications, camera lenses can sharply focus only on a specific object or distance. Objects nearer or farther from the camera will be out of focus or blurred. The blurring helps give a visual cue to the viewer about the object's distance.A shallow depth of field is the small or narrow area in an image that is in focus. Often, the background is blurred while only the subject stays in focus. The further the subject is from the background dramatically decreases the depth of field as it gives the image some depth. The distance between subjects will also give this effect
The maximum depth of field that the graph will show is 10 meters (33 feet); depth of field approaches infinity at the hyperfocal distance for each aperture. The minimum distance is 4 times the focal length.
The following graphic illustrates how changing these factors: aperture, focal length and the distance from the subject affect the depth of field. See how each of these factors are applied in the depth of field examples below: Expand All. Shallow Depth of Field. In this image you can see how a shallow depth of field keeps the focus on the action.
Understanding aperture and depth of field allows photographers to get creative with blur — like keeping the details of a stunning landscape intact with a narrow aperture or blurring out the distractions in a portrait with a wide aperture. But, knowing how aperture and distance play a role in depth of field is a tremendous tool for
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depth of field distance
