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Now here: CROSSED PAIR and PARALLEL PAIR stereographs.
The pictures on this site are from
Missouri State Parks and
State Historic Sites.
Choose a region or topic from the
column to the left, or continue down
this page for a tutorial.
When viewed a certain way
these pictures appear three
dimensional.
This does not require special glasses or
software, just some persistence using
your own two eyes. This technique is
called "free-viewing."
If you have normal stereoscopic vision
(can see depth) you will probably be
able to enjoy free-viewing.
Choose and practice ONE of these
viewing methods ("crossed" is usually
the easiest): 
| CROSSED (or cross-eye) VIEWING: | PARALLEL (or wall-eye) VIEWING: | | First, hide the picture from view on the
RIGHT of the triplet. Keep your eyes level, horizontally, and sit
directly in front of the screen at a
comfortable typing distance. Then "focus in front" of the pair of
pictures on the LEFT of the triplet, or "cross"
your eyes, so the pictures overlap, creating a new third image in the middle of your field of vision. | First, hide the picture from view on the
LEFT of the triplet. Keep your eyes level, horizontally, and sit directly in front of the screen at a
comfortable typing distance. Then "stare through" the pair of
pictures on the RIGHT of the triplet, or "uncross"
your eyes, so the pictures overlap, creating a new third image in the middle of your field of vision. |
Practice 3D viewing on the
covered bridge at the top of this
page.
When the two tunnels
"snap apart" and become four
tunnels you are halfway there.
If they "snap back" to two
tunnels you tried too hard, too
soon.
Eventually they will move
toward each other, converge, and
"snap together" in the middle to
form a third, three-dimensional
image.
If the 3D image appears to
be "inside out" use the other pair
of the triplet.
Once you have "tuned in" to the 3D
image, you can scroll down to the
next image without changing your
focus.
If the 3D effect does not
happen for you, take a break and
try again when your eyes are
rested.
This site is best viewed at 600 by
800 pixels resolution.
Higher resolution makes the pictures
smaller, with some loss of detail,
but may make it easier to achieve
the 3D effect.
Moving back from the
display can also make it easier.
Sometimes a picture does not load
completely and just shows a red X.
To show the picture, right click on it
and select "Show picture" from the
menu.
Missouri has 86 State Parks and
State Historic Sites.
As of 6 September 2004 this website has
1,010 stereographs from all 86
Missouri State Parks and
State Historic Sites.
The links in the left column have
more three-D pictures to view.
There is no commercial purpose for
this site. It is freely offered for
entertainment and enjoyment.
This site is not affiliated with the
Missouri Department of
Natural Resources, or the
Missouri Division of Parks.
Please post comments on the
General message board.
All images published on this site are
the original work of, and are
copyrighted by Larry E. Stephey,
2004, 2005, 2006, 2007
See also: http://groups.msn.com/MissouriBotanicalGarden3D
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