If you are using a compact camera, digital or otherwise, the lens probably has no markings you can use. In this case, you will have to obtain a depth of field chart. If the camera has a depth of field scale on top of the lens barrel, you locate the f stop (the number) being used for the shot on both sides of the center dividing line and estimate the corresponding distances that line up with those numbers to get the depth of field as a range in feet or metres.
Describing this in words is virtually impossible, so the best I can suggest if you did not grasp the above, is to read up on it in your camera manual or Google it.
The size of the zone is determined by three key factors:-
the aperture of the lens, the focal length of the lens used, and the distance you are from the subject. Varying these three elements allows you almost complete control over the depth-of-field in a picture. So theoretically if you change any of these three factors then you change the field-of-depth
depends on the lens you have, also to maximize the amount of depth of field make sure your aperture is fully open, and also try to be as close to your subject as possible.
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.
Depth of field is best demonstrated with a slide containing overlapping threads. The depth of field that would increase is the low power objective.
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.
Depth of field is the depth of the specimen clearly in focus and is greater at lower magnifications.
I guess that the atmosphere would change in terms of depth if the planets temperature changed enough.
As the magnification increases, the depth of field decreases.
No its actually the opposite
The depth of field decreases.
The higher the magnification the lower the depth of field.
The term "wide depth of field" is not used. Depth of field can either be shallow or deep. The definition of depth of field is this: Depth of field is defined as the range of object distances within which objects are imaged with acceptable sharpness. A shallow depth of field would mean that only objects within a small distance in a scene would be focused; everything else would be out-of-focus. For an example, consider many portrait photos; in them the background is blurred while the person is in sharp focus. A deep depth of field would mean that a much larger range of objects at various distances would be in focus. Most landscape photographs are a good example of this.
Depth of field decreases from low to high. This means what you see under the microscope is blurry. If both objects are not blurry, this means you have high depth-of-field.
Depth of field in reference to eyeglasses is the preferred reading distance and its smaller surrounding area. This is the distance used for single vision readers.