Is there a difference between increasing focal length vs. cropping

by Fuad   Last Updated April 04, 2017 23:18 PM

Other than the difference in the quality of the image (increased focal length will produce more quality than the equivalent cropping of the image), is there a difference? For example, if I

  1. increase focal length and don't crop


  1. not increasing focal length and cropping image to be same size/view.

I am asking if there is a difference, distortion-wise, like when increasing focal length and backing up. Or will the images be the same other than quality? Particularly concerned with portraits.

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