P3D Lents and the Window

[David Spacey <spacey@xxxxxxxxxxxxx>]

Hi All,

Following the discussion of the Stereo Window on lenticular prints, I had
a good close look at the negs from my IT Wizard.  The interesting thing is
that the left neg has less of the left hand side.  Since that is the right
hand image, it's all out of the window.

Now the prints are pretty much all behind the window (I hold to the view
that the edge of a print defines the window) so the printer must be
dealing with it through cropping.  I'd noticed some pretty heavy cropping
on my prints, which I can understand now.  I guess doing it that way makes
the camera cheaper to build.  I wouldn't have felt you could spare the
emulsion though, given that you are dealing with half frame negs already.

Some of my prints do have objects closer than the window, usually when
I've failed to notice things in front of my foreground subject (Prat!).
They can't come very far though, before you start to see double images.
They can't possibly be so close that they can't be fused, so it must be
the lents allowing two images to reach the eye.  It helps a bit to hold
the print further away in this case.  In the worst cases though, your arm
just ain't long enough.  ;-)


Dave Spacey
____________________________________________________________________________

Walk tall, walk straight,
Spit the world right in the eye.

-Kevin Godley and Lol Creme


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