If you view exact duplicates of slides in the left and right positions of a stereo projector, you can see
A) depth.
B) no depth.

Question

Quizplus · Accepted Answer

When viewing exact duplicates of slides in the left and right positions of a stereo projector, there is no difference in the images presented to each eye, leading to a perception of no depth. Depth perception in such setups relies on slight differences between the images seen by each eye, simulating how our eyes perceive depth in the real world.

If You View Exact Duplicates of Slides in the Left