P3D Re: Previewing Print Pairs

["Dr. George A. Themelis" <DrT-3d@xxxxxxxxxxxxxxxxxxxxxxxxxxx>]

>The index print is merely a reduced size of the origional so the
>previewing is very accurate to predict which prints will look the best.

Not, it is not "very accurate".  The previewing focal length is very
different than the viewing focal length.  Stretch is "stretched".
Sharpness cannot be estimated/appreciated.  To give you an analogy
with slides, I can cross-view an unmounted roll of Realist slides
in a few seconds.  Is this a very accurate way to predict which
slides will look the best in a red button viewer?  No!  It is 
terribly inaccurate!  A waste of time really.

>Dr.T....I'm not sure I understand what you mean by method of viewing
>determines successful results.

I will give you an example that I am sure you will understand.  Can
you determine "very accurately" succesful *projection* results by 
viewing slides in a halogenized red button viewer?  From our numerous 
discussions on this *after* club stereo slide competitions, I think 
you will agree with me that you cannot.  

George Themelis


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