"3D" stereoscopic images may be viewed without any special glasses or hardware using the


A crossed image has the right image on the left hand side and the left image on the righthand side.  Many people find it easy to observe an object ten inches in front of their face.  Such people can learn to easily view a Right/Left pair in stereo using no glasses.  One does need to know or learn how to "see double" by crossing their eyes.

Curiously, one needs to relax their eyes to do this simple trick.  For a brief time, one must see double without forcing the two  images into one.  No strain no pain.

This learning technique seems to work well for most people, but they may look sillier than normal while they learn.  Begin by slowly moving your index finger towards your nose and follow it all the way if you can.    If you can see a single image of your finger when it is ten inches from your nose this will work for you sharp focus at that distance is not required.

<>Sit arm's length from your monitor with the RL image below visible.  Now touch the center of the RL image and move your finger towards your nose and follow it with your vision.   You will notice that the world is double behind your finger.   You should that the double images move apart as you track your finger.

 The goal is to lay an L on top of the R.    See the examples below before you try.   Don't force your eyes  - viewing is a relaxed condition

rl image

Now try looking at your finger crosseyed again and be arm's length from your monitor.
The goal is to overlap the R on top of the L.  If you do it, you should put your hand down.


This is how it should look.

LEVEL - not like this:

If the one tilts their head while looking crosseyed one image is above the other.  Level your head to correct for this.

OVERLAPPED - not like this:

If the images don't line up keep trying until you can put the vertical line of both letters on top of each other.


This is how it should look.

 North Coast of California in Winter

crosseye pair

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