If you look at yourself in the mirror from very close up (or get close to someone you’re intimate with), you get exactly the same distortions (closing one eye helps with this, as most people can’t maintain vergence that close). The crazy thing about this is that it happens in real life too, we just don’t often notice it. My nose appears much larger, because it is proportionally closer to the camera than the rest of my face. Because my nose is about 10cm away from my ears on my head, this means that there is a large proportional difference in the distance from the camera to my nose, and the distance from the camera to my ears. In the rightmost image, I’m about 20cm from the camera. At this distance, each of my facial features is a similar distance from the camera – within a few percent of the total distance – so my face appears flat. In the leftmost image, the subject is far away (2 metres) from the camera.
Actually, the only ‘distortions’ are caused by geometry, they are nothing to do with the lens or the camera. Many people would probably tell you this was due to ‘lens distortion’ – implying that the wide angle lens used for the photos on the right somehow distorts reality, creating an imperfect image. Note that the wide angle lens used for the last three photos is not a fisheye lens (it’s one of these). Photos of me using different focal length lenses (85-8mm on an APS-C sensor, so equivalent to 127.5-12mm on 35mm film) from five different distances (200-20cm).
0 kommentar(er)
