This exercise is to take a fairly closely constrained portrait shot with your longest focal length and then walk forward until you can get the same framing with your shortest focal length and retake.
These images are taken with the subject standing in the same spot (note the just visible wall behind his head), however the apparent surround appears completely different. The much closer image (on the left) taken with a relatively wide-angle focal length shows much more of the background and puts him ‘in place’ while the image taken with the long focal length focuses in on him and isolates him from the background.
- There is a clear difference between a close-up and a distance image even if the main subject takes up the same amount of the image.
- Either may be useful depending on what is required.