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Zooming changes perspective

 There is always perspective distortion when zooming.

 TOMMY AND THE WILDCAT
 © Wildcat Productions ltd 1999
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  Zooming

Zooming is unnatural, since the human eye is not capable of comparable action, i.e. changing the focal length. Zooming is not actually dollying, since it is done as a zoom objective effect by changing the focal length. There is always perspective distortion when zooming.

The advantages of zooming are speed, controlling unexpected movements, and expression.

Effects of zooming:

  • The focal length changes, so the deep focus and perspective change as well.
  • The lens speed changes, since the f-number decreases.
  • The aperture influences the depth of field in different focal lengths.

Cf. Optics

 

 
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