top navigation
  This page located within:  Optometrists Network  >  >  All About 3D

3D Stereoscopic Vision, Binocular Depth Perception
What is it?
How to See 3D
Can't See 3D?
Vision Problems?

Vision Therapy
What is VT?
Eye Exercises

For Parents
Lazy Eye
Cross- Eyed
Eye Doctors
Vision & LDs

The Famous Frankfurter Experiment

The Famous Frankfurter Experiment demonstrates exactly how the eyes are used during parallel-viewing (Magic Eye 3D viewing). If this experiment is successful, you'll see a miniature frankfurter floating in the air as pictured above. Wow.
  • You need to look into the distance for this, so turn away from the computer monitor.
  • Pick a specific object in the distance. Aim your eyes at that target.
  • While looking at that distant target, bring your index fingers, tips touching, up in front of your eyes and into your line of sight.
  • While still aiming your eyes at the distant target, calmly notice that a mini-frank has appeared between the tips of your fingers. Do not allow the awesome beauty of the mini-frank to distract you and cause you to aim your eyes directly at it. Continue to aim your eyes into the distance at your target.
  • Pull the tips of your fingers apart slightly and observe the frankfurter floating in the air.
  • Wiggle your fingers and watch the mini-frank dance.

Remember how your eyes feel while performing this depth-defying frankfurter feat and you can apply the same skills to 3D viewing.

More Tips on Parallel-Viewing: Looking Through A Solid Object

To do parallel-viewing, you must aim your eyes through the image and into the distance. The problem is there's a solid object in the way -- a computer monitor or a book or something! How do you look through a solid object?! Well, generally, we look directly at what we want to see and leave the X-ray vision to Superman. In this case, we've got to develop our own superpowers.
Suggestion: imagine you are looking through a window. See illustration below.

Try other 3D Viewing Methods

Home    Top of Page    Contents    Stereo Vision Project
How to See 3D    3D Gallery    Directory
Vision Glossary    Parents' Checklist HR

Magic Eye How to See 3D copyright © 1995; Out-of-Print
by Magic Eye, Inc. and Rachel Cooper, Advocate of Vision Therapy Eye Exercises for Lazy Eye.
All other images and text: copyright © 1996- by Rachel Cooper. All rights reserved.