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A telephoto lens enables you to shoot a distant subject by isolating it in a narrow range. Because it is possible to
bring a distant subject closer and photograph it as if it was right in front of you, it is used for shooting sports scenes
where the photographer cannot approach the subject, landscapes in the remote locations and suchlike. |
| You can shoot a distant glacier as if it was right in front
of you (400 mm) |
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It is possible to take a photo so that the background is blurred
and a subject stands out, due to the small amount of distortion and the short depth of field. Therefore,
this type of lens is often used for taking a portrait of a person. |
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| The areas in front and behind the subject
are softly blurred due to the short depth of field. |
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| The distant background is blurred as if it were
melting away, and the subject alone stands out. |
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Unlike wide-angle lenses, the objects behind the subject come
out large, so you can take a photo in which the subject at the front and the subject in the distance both
appear closer. This effect is called compression, and it is one of the characteristics of a telephoto lens.
In the example below, the lens was changed to 28 mm, 50 mm, and 200
mm without changing the locations of the model or the car in the background. The photos
were taken by moving backward so that the size of the model would be the same. For the
photo taken with the 200-mm telephoto lens, the result is a tense photo as if the car behind
were getting closer. |
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| The picture at the right was taken by utilizing
the compression effect so that the mountain in the distance appears to stand just across the road. |
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