Lifesize closeups

[T3D Greg Erker <erker@xxxxxxxxxxxxxx>]

  Suppose I have a camera with normal lens spacing
and I take a photo of an object which is 6 ft away
with it. I then view it in a viewer with ortho FL
lenses. It looks life size.

  Now I repeat but from 3 feet away. If I uses a
closeup mount (or mask with tape) I can mount the
image and again when I view it it appears life size.

  Now suppose I want to take a closeup from 1 foot
away (say of one rose with a black background behind
it). In real life my eyeballs toe in and I see the
image at life size. But if I shoot with my normal
stereo camera there will be so little common image
between the left and right film chips that I no longer
have a viewable image.

  So how do I take a closeup picture of a small
object and still have it look life size on viewing.

Possibilities:

1) Toe in the camera lenses to have a usable amount
of image on the film chips. Distortion problems?

2) Use reduced camera lens spacing (or reduced shift
with a single camera). But if I do 1/3 normal then
my rose looks 3x too big.

3) A combination of 1 and 2?

4) Others?

5) Can't be done below a certain distance (3 ft?,
2 ft?).


Thanks - Greg E.



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