01-02-2015, 08:53 AM
Distortion and perspective basically are independent at first, I think. But of course, in the case of ultra wide angle, both begin to interact together noticeably. Thanks for the great explanation, Scythels.
In other words, using a 500 mm lens and taking the same picture with a 50 mm but remaining on the exact same place and aiming at the exact same target and using the same aperture, the perspective will not change if I crop a frame out of the 50 mm picture. Saying the focal length is changing perspective, is untrue and a very old false assumption in photography. The whole "perspective change" only is true, because wide angles do give the opportunities to choose a closer point of view to the target. But in that case, not the wide angle is changing the perspective. This is only done by using your feet, not your zoom ring!
In other words, using a 500 mm lens and taking the same picture with a 50 mm but remaining on the exact same place and aiming at the exact same target and using the same aperture, the perspective will not change if I crop a frame out of the 50 mm picture. Saying the focal length is changing perspective, is untrue and a very old false assumption in photography. The whole "perspective change" only is true, because wide angles do give the opportunities to choose a closer point of view to the target. But in that case, not the wide angle is changing the perspective. This is only done by using your feet, not your zoom ring!