P3D Three L rule

[George Themelis <gthemelis@xxxxxxxxx>]

>>The rule says:  The Left eye should see Less in the Left side.
 
 
> Actually, this rule can be confusing...

Actually (and with all due respect) you are confusing things by
misapplying the rule.  This rule is for setting the stereo
window when mounting stereo images.  If you look through a REAL
window, your left eye will see less of the scene along the left
edge of the window.  Similarly, when you mount stereo images,
the left chip should show less of the scene in its left side. 
The rule works!!!

Now, how can we explain your observation that the left eye
generally sees more *from the left side of things* than the
right eye?  When looking through a real window, the left eye is
forced to look from the RIGHT side of the LEFT edge (and the
LEFT side of the RIGHT edge).  Hence, it sees LESS in the LEFT
side and MORE in the RIGHT side.

Actually, the way I apply this rule when I mount stereo slides
is this:  My RIGHT EYE should see MORE on the LEFT side.  But it
is easier to learn this as the THREE L RULE than the RML rule...

Confused more?

Honestly, this is one of the most practical rules I have learned
in stereo photography.  I now instinctively look to see if I see
more in the left side of the right chip.  I don't even think
about it.  It is easy to learn the rule if you remember the
three L's.  But after you use it for a while, it will become
second nature, no matter how you apply it.

George Themelis




=====
George Themelis, DrT-3d@xxxxxxx
http://home.att.net/~drt-3d/
__________________________________________________
Do You Yahoo!?
Talk to your friends online with Yahoo! Messenger.
http://im.yahoo.com