Originally Posted by Sheiky
That's my point exactly. But you're right that different elements in the image can either enhance or reduce the effect of perspective distortion. It's a good point - the position and angle of the boat in the original shot give it a lot of visual weight, adding to the distortion.
Originally Posted by Sheiky
Well, sort of. The 'moon illusion' seems to be a complex and not completely understood phenomenon, but it's based mostly in perception rather than optics. Here's a scientific journal article on the topic, if you want to delve into it... [8-|]