P3D Re: Working with unequal image sizes (Was Re: Matched lenses in stereo)

[George Themelis <gthemelis@xxxxxxxxx>]

--- Paul Talbot <ptww@xxxxxxxxx> wrote:

> But what if the scene contains distinct objects from top
> to bottom?  It seems to me it would be less strain on the
> eyes to vertically align some object in the middle of the
> scene, so that the size difference is split in two, and
> falls half above and half below the center.

Here is what I posted on this in the
New.3D.Film.Gear@xxxxxxxxxxxxx list:

Now, to my question, if you have size mismatch, how to you mount
the chips, with tops aligned, bottoms aligned or centers
aligned?  Larry said "with center of interest aligned".  I
assume this is located at the 1/3 intersection?  (that's a
joke... it is a well known compositional rule that the center of
interest is at the intersection of 1/3 lines)  I have given some
thought to this and here is what I concluded:

- for a viewer, you align the bottoms (somehow in a viewer my
eye is drawn to the bottom to check alignment)

- for projection you align the tops (most people can easily see
the tops while the bottoms are usually blocked by the person
sitting in front of you)

- for most comfortable viewing definitely the center (deviations

are minimized)

What if you want to mount for viewer, projection, and most
comforable viewing?  Then you have a problem!  The center of
interest sounds good.  Since this might be changing from picture
to picture but usually staying around the center, that's
semi-random and it might work well.  

George Themelis

=====
George Themelis (DrT-3d@xxxxxxxxxxxxxxxx)
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