7.7 CONTROLLING PERSPECTIVE
 
 
 
 
 
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A photograph can appear to compress space so that objects appear closer together than you expect. Another photograph of the same scene can seem to expand space so that objects appear farther apart than normal. These apparent distortions in perspective—the appearance of depth in a photograph—are often attributed to the focal length of the lens being used but are actually caused by the distance of the lens from the subject.

perspective1.jpg (47307 bytes) perspective2.jpg (45832 bytes)
The image on the left appears to be more "open" and spacious than the more visually "compressed" one on the right. However, the image on the right is actually contained in the image on the left. It just appears more compressed because the enlarged section includes only those elements farthest from the camera.

 

lens_close.JPG (14297 bytes) lens_far.jpg (16465 bytes)
Changing camera-to-subject distance does change perspective as shown here. As the camera is moved closer to the foreground subject (left), the subject appears to increase in size relative to the background. This changing relationship between the size of objects in the foreground and background creates the difference in perspective.


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