Re: [photo-3d] plain paper distance

["Dr. George A. Themelis" <drt-3d@xxxxxxx>]

> John A. Rupkalvis writes:
> 
> > It amazes me how many stereo photographers spend (waste?)
> > so much time calculating things, and then find out that it does not
> > work anyway.

David Kesner replied:
 
> I want to set the record straight - I do not use, nor have I 
> ever used, a math formula when taking a stereo image. However, 
> it never hurts to learn and understand these things. 

IMO, understanding comes from deriving the formulas, not using
a formula that someone else derived.  When I was starting
in stereo (12 years ago), I spent considerable time deriving
formulas and wrote programs to plot stereo pairs.  This was
a fantastic educational experience for me.  I learned a lot
from the assumptions that go into the derivations and the
way the different variables affect the end result.  Today,
like DrDave, I do not use any formulas or measurements
of any type.  Possibly this is an extreme, but it seems to
work for me.

George Themelis



 

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