| Perspective is determined by camera to
subject distance. In theory, therefore, focal length does not alter
perspective. Whether you have a normal, wide-angle, or telephoto
lens, perspective is the same if the camera to subject distance
remain the same.
However, the optical in photographic effect
differently when you make the main subject look the same size using
a wide-angle and a telephoto lens? A careful study of the
illustrations below will make the difference clear. When
photographed with a wide-angle lens, more background can be seen as
compared to the result of using a standard or telephoto lens.
Perspective in photography is
more stressed the wider the angle of the lens becomes, and less as
the lens begins to approach the telephoto range. Consequently, when
selecting interchangeable lenses, you should also remember that you
can better control the way you express your subject by choosing a
lens of suitable perspective qualities.
Picture on the left, the background is wider and
looks more distant. In the center, using a 50mm standard lens, the
background is more natural. And the picture on the right, the
background enlarged and so close to the main subject that there
seems to be no distance between them.
|
|
With 20mm super wide-angle
lens, and few feet away to keep the model in center of the picture.
Take a closer look at the bush behind the model, their are around 300 feet
away from the model.
|
With
50mm standard lens, this picture gives the most natural looking
perspective.
|
Using
a 135mm telephoto lens, and over 20 feet away from the model, to
keep her same size like the picture with 20mm and 50mm lens. You can
feel the bush 300 feet away almost touching her back. |
