Question - Barrel Distortion vs Perspective Distortion?

[P. J. Alling]

It's possible that you didn't get the correct information on DOF, 
because a lot of teachers cover it wrong.  They don't understand it 
properly either for a very long time.

Eactivist at aol.com wrote:
> In a message dated 11/10/2007 8:51:44 A.M.  Pacific Standard Time, 
> pdml at web-options.com writes:
> The book "Photography" by  London and Upton has been used for teaching
> photography for many years and  contains a lot of solid advice on all
> aspects of photography. You can  probably find it quite easily in your
> local library or used bookshop. It has  some good stuff about this, and
> a good example of the way perspective changes  with the lens-subject
> distance, and the affect of different focal  lengths.
>
> Bob
>
>
> ===========
> Great, thanks!
>
> Really  haven't got this particular aspect in any photography classes to  
> date.
>
> Well, actually I just recently also found out I don't understand  DOF as well 
> as I thought I did. But that's me, because I am sure some teacher  covered 
> it. And that's another question. One I may not ask, because I can  probably get 
> that out of a book as well.
>
> I've been using it pretty  effectively, but some aspects of it I really 
> misunderstood. You know, "I just  wanna take pretty pictures" and not think about 
> the technical aspects too much.  But sometimes, sigh, it becomes necessary.
>
> Marnie aka Doe  ;-)
>
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