P3D Re: Fuzzy Posting

["Greg Wageman" <gjw@xxxxxxxxxx>]

From: Bob_Maxey@xxxxxxxxxxxx <Bob_Maxey@xxxxxxxxxxxx>


>Granted, if you make an overt and deliberate attempt to see things out
of
>focus, you can certainly prove that the eyes do not always see
everything
>sharp. However, it is our tendency to avoid these situations for most
of
>the time. You will shift and make tiny adjustements automatically to
avoid
>seeing fuzzy images. You usually are not aware that you  do it, you
make
>minute changes on a subcoinscience level.

I'm sorry, I must disagree.  It is a perfectly natural situation to have
objects both very close to one and many tens of feet away.  Most people
who work in an office-type situation experience this every workday.
Vision experts even tell us to look away from the close work
periodically and focus on a distant object in order to give our eyes a
break.

The situation of having subjects *only* from greater than seven feet to
infinity is what is unnatural (unless you live out on the prarie and are
greater than seven feet tall), and stereophotographers have to go out of
their way to ensure that there isn't "too much" depth in a scene.  To
confuse this with normalcy is a mistake, IMO.

We've discussed many times that what we see in a stereo viewer is a long
way from reproducing reality, optically speaking.  Having focus fixed
while vergence changes, is one major difference.

     -Greg W. (gjw@xxxxxxxxxx)