Don, I am inclined to agree with Stephen on this one. When I have finsished mowing and weeding I will post a very simple sketch and mathematical proof that focal length does not affect perspective. There is an illussion that it does because it causes the photographer to shoot from a different postion and it is this change in subject distance that causes the change in perspective.
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Originally Posted by Don Hoey
Off to the races here again John. I understand the effect a lens has on elements within a scene and thought that to be perspective. So I agreed with Gidders.
Stephens link got me a bit confused as it says, [ 1. Lens focal length does not affect perspective. 2. Film size does not affect perspective. 3. Location of the camera does affect perspective. ]
Now to my simple mind in no.3 the lens attatched must affect perspective, if perspective is the relationship between objects in the scene.
So I am now trying to find a definition for ' PERSPECTIVE '.
I do not mind owning up to lack of formal education before I get ripped apart again. 
Don |