Re: Composing for window effects

[P3D <PTWW@xxxxxxx>]

I received the following from Grant with request to forward to the list.

>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,
>and keep Dn at or behind the window.  If you exceed those limits Dn 
>will be in front of the window, or Df will cause your eyes to diverge.
>
>Could you pass this along to P3d, my magic link doesn't get along with
>bobcat.
>
>Grant

Thanks, Grant!

Paul Talbot


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