> Changing the lens focal length without changing the camera position has no impact upon the perspective in the scene, even though it radically alters the size of objects within the scene
Radically altering the size of objects within the scene is what most average people mean by perspective. It’s exactly the effect the author of the article is claiming doesn’t happen yet he proved it does immediately.
Is that technically the correct usage of the term perspective? Yes! It’s just not the specific technical usage definition common in optics. But it is correct, as it’s referencing the relative size & position of objects.
The point is that it doesn't do anything that you couldn't achieve by cropping a photo taken with a wider lens from the same position. The relative size and position of the objects doesn't change.
> Changing the lens focal length without changing the camera position has no impact upon the perspective in the scene, even though it radically alters the size of objects within the scene
Radically altering the size of objects within the scene is what most average people mean by perspective. It’s exactly the effect the author of the article is claiming doesn’t happen yet he proved it does immediately.
Is that technically the correct usage of the term perspective? Yes! It’s just not the specific technical usage definition common in optics. But it is correct, as it’s referencing the relative size & position of objects.