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Re: Composing for window effects


  • From: P3D Dr. George A. Themelis <fj834@xxxxxxxxxxxxxxxxxxxxx>
  • Subject: Re: Composing for window effects
  • Date: Wed, 19 Mar 1997 11:07:39 -0500 (EST)

>>According to the John B equations:
>>With the 70 mm lens separation of the Realist, the maximum viewable 
>>on-film-deviation limitations (difference, on the film, between 
>>distant and near objects) permits these viewable Dn/Df pairs, in feet 
>>(with the appropriate mask):
>>
>>2/2.6, 3/4.8, 4/8.5, 5/15.6, 6/35.1, 7/342, 7.1/quarter mile, 7.2/inf. 
>>
>>If you stay within those limits, you will be able to view the slide
>comfortably,
>>Grant

This is an answer to a different question, not the one Paul asked.  Paul
asked the limits for manipulating the stereo window within a mask.  For
example, can you use a 5p mask to mount a picture with 2 to 2.6 feet range
of depth?  The answer is no.

Also, these numbers apply for projection in certain screen sizes.  It is
possible to exceed these limits and still view the picture in a viewer or
in a small size screen.

-- George Themelis


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