Re: John!!!

[P3D John Bercovitz <bercov@xxxxxxxxxxx>]

>>> Two lenses take two pictures from two different places.
>>> One lens takes one picture from one place.

>>Ah!  Here is a very simple experiment you can do to prove yourself 
>>wrong:  Set up a camera with a ground glass at the film plane.  Cover
>>the left half of the lens with a piece of paper.  Look at the view.
>>Now move the paper to cover the right half of the lens.  You will easily
>>see that this gives you two different views from two different places
>>using only one lens that has not been moved.
 
> Then, how many lenses does your two-lens system have?
> If I follow your analogy, your cameras have 4 lenses...or more?

Allan, try the experiment; what could it hurt?  You'll be surprised!
See if your results differ from mine.  I had to do the experiment
for another reason but the same experiment will serve here.

John B


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