Depth of Field - an illusion?

[White16valver]

I just stumbled on this webpage and it's making my head hurt slightly...

http://www.film-and-video.com/dofmyth.htm
'This article appears courtesy of Walter Graff- http://www.waltergraff.com'


So Depth of Field doesn't change with Focal Length (assuming aperture and the thing being photographed remain the same size) but the illusion of Depth of Field does change??

But surely our eyes perceive the illusion as an actual change of DoF so it doesn't really matter whether or not there is an actual change in the DoF???


This is too much for my brain when it's 32 degrees outside... lol

 

[Landyman]

Life is an illusion

 

[White16valver]

Life is an illusion

There is no spoon??

 

[Andy_con]

i like sausages

 

[White16valver]

i like sausage

Woah, you break out of that closet!!

 

[Marky_]

But surely our eyes perceive the illusion as an actual change of DoF so it doesn't really matter whether or not there is an actual change in the DoF???

Aye. Pointless article but I guess we can now be smartarses and correct anyone that says the DOF changes with focal length.