It is depth of field (the part of the overall image that appears acceptably sharp) that doesn't extend very far throughout any portion of the distance from the near and far points in the image. By this definition, the limited depth of field can be in the foreground, middle ground or background, but it is a small portion of the image overall. The average person would find their depth of field to be in the near 1/3 of the distance from the near and far points.
Distance to the subject, lens focal length an aperture are the main controlling factors, but the size of the reproduced image and the distance between the viewer and the image contribute also. Your perception of the depth of field can change as you approach a large image such as a poster in a mall.
You will get the smallest depth of field.
Depth of field on a camera is controlled by the aperture. The aperture is basically the size of the opening in the lens. A large aperture (or opening) creates a shallower depth of field and a small aperture creates a greater depth of field. Aperture, along with shutter speed, determine how much light goes into the camera. The size of the aperture is indicated by the f/stop number. The numbers usually range from about f/1 to around f/64. The smaller the number is, the larger the aperture is and the shallower the depth of field, meaning less space is in focus.Additional AnswerDepth of field is also affected by the focal length of your camera's lens. For any given aperture, longer focal length lenses (telephoto lenses) have a much narrower depth of field than a standard lens, and shorter focal length lenses (wide-angle lenses) have a much wider depth of field than a standard lens.
Usually, one would change the aperture to compensate for the change in shutter speed in order to keep the level of exposure the same. Changing the aperture affects the depth of field.
Scanners are capable of making 1:1 images, with a great deal more detail than a camera. The disadvantages are very shallow depth of field, inability to image things away from the scanner surface, huge file size and, of course, limited portability.
I think your question could be re-phrased as the difference between long exposure photography and deep depth of field photography. A long exposure is where a long exposure time is used, either to record movement over a period of time, for artistic effect, or in order to provide a greater depth of field, (deep focus), achieved by using a smaller 'F' number on the camera, which provides a smaller aperture for the light to pass through. ********* For some, it relates to what is technically known as hyperfocal distance (a point of focus deduced and utilized to maximize depth of field beyond normal). IMHO, "deep focus" is a mis-nomer as you can only focus on one plane within the field of view. Anything in front or behind is not in focus; however, it may be acceptably sharp to the eye. This is depth of field. There is also "depth of focus", which is different, though related. Methinks neither depth of field nor depth of focus should be referred to as deep focus
The iPhone 6 camera has a depth of field capability that allows for a shallow depth of field effect, which can blur the background of a photo to emphasize the subject.
To create a shallow depth of field in your photographs, use a wide aperture setting (such as f/2.8 or lower) on your camera. This will blur the background and make your subject stand out. Additionally, getting closer to your subject and using a longer focal length lens can also help achieve a shallow depth of field effect.
Depth of field in photography is 3-dimensional and is measured from the foreground moving along a horizontal plane towards the background. Maximum depth-of-field means most of the scene is in focus and shallow depth-of-field means the minimum is in focus. Shallow depth-of-field lets you lose the background into a nice blur leaving the foreground in focus - good for portrait photography. In landscape photography you would normally choose the maximum depth-of-field so that distant hills were in focus as well as the middle ground and the foreground - in other words, everything in the field of your vision would be sharply focussed.
To achieve a shallow depth of field in your photographs, you can adjust the aperture to a lower f-stop number (e.g. f/2.8 or f/4). This will create a smaller depth of field, resulting in a blurred background and a sharp subject in the foreground.
Manual or Aperture Priority.
To create a shallow depth of field in photography, use a wide aperture (small f-stop number) and focus on your subject while keeping the background out of focus. This will blur the background and make your subject stand out.
To achieve a shallow depth of field in your photographs, use a low f-stop setting such as f/2.8 or lower. This will create a blurred background and emphasize the subject in focus.
The optimal f-stop setting to achieve a shallow depth of field in photography is typically around f/2.8 to f/4. This allows for a larger aperture, which results in a blurred background and a sharp subject in the foreground.
Depth of field in point and shoot photography is important because it determines how much of the image is in focus. A shallow depth of field can create a blurred background, making the subject stand out, while a deep depth of field keeps more of the image sharp. This can affect the overall composition and visual impact of the photograph.
To achieve a shallow depth of field in your photographs, use a wide aperture (small f-stop number), focus on your subject, and keep the distance between your subject and the background as far as possible. This will create a blurred background, emphasizing your subject and creating a professional-looking effect.
With a 100mm macro lens, as little as a few millimeters, even when stopped down to F16.
Generally, you can with all cameras. All you need is a shallow depth of field. You can achieve this by using a low aperture (ex. f/2.8, f/1.8) The lower the f/#, the shallower your depth of field will be.