Originally posted by Anvh No it won't per definition
Yes it does, per definition of the actual phenomenon i question: perspective distortion, which by defi itionis dependent on angle of view. Once again, you are failing to understand that linear perspective and the optical Illusion known as perspective distortion are *different phenomena*.
I realize you are completely convinced you are right and therefore have no interest in actually learning about perspective distortion. But if you would put that attitude aside for a moment and actually read my posts and try to understand rm, I have no doubt you'd be capable of it.
Quote: even if if you don't except that when you crop the image the perspective does not change you do except that the viewer can change his perspective relative to the image.
Cropping does *not* affect linear perspective; on this point you are correct. Again, you are still failing to understand me *at all* if you are not getting that I agree with this. Cropping doesn't affect linear perspective. Changing focal length and reshooting doesn't affect linear perspective. Changing cameras and reshooting doesn't affect linear perspective. Only changing shooting position changes linear perspective. How many times must I say this before you realize that I do understand linear perspective?
However, while cropping an image will not chsnge its linear perspective, it will change the angle of view depicted in the image. And this affect the optical illusion known as perspective distortion just as surely as anything else thst would afrect AOV would. That is, the effect is the same as switching to a longer focal length and re-shooting, or switching to a smaller format and re-shooting. And it is this optical illusion known as perspective distortion that is what you are failing to understand, for the most part. Except that:
Quote: If you look up close to an image created by a wide angle lens then that so called effect is gone.
True - so this much at least it appears you may be understanding. As I have observed over and over and over and over, the optical illusion known as perspective distortion depends on the angle subtended by the print from the viewing position to xactly the same degree as it depends on the AOV depitced in the image. The notion of what defines "normal" (ie, lack of perspective distortion) depends onthe assumption of "typical" print sizes and viewing distances. Again, I have explained all this many times before; this is not new information.