Re: [photo-3d] Cha, Cah, Cha?

["Dr. George A. Themelis" <drt-3d@xxxxxxx>]

> I'm new to this group but hope to stick around for a long time.

Hello and welcome!!!
 
> Ok, here's my quesiton. I do single camera stereo work. In general I 
> gauge movement between images for their effect. Sometimes I shoot 
> still lifes and there it doesn't matter. Other times I shoot scenes 
> where the illusion of movement adds to the effect I'm after. I want to 
> enter some of the competitions I'm reading about. But, I'm wondering 
> if the single camera method is look down upon as amatureish(sp?)? 

No, on the contrary.  In my opinion, successful single camera
stereo is rather difficult to do and it is a sign of advanced
stereo work.  But how would people know that a single camera
was used for a shot, vs. twin cameras?

Please explain "I gauge movement between images for their effect"
and "illusion of movement adds to the effect I am after".

It sounds like you are saying that you enjoy the movement of
the subject(s) between the right and left picture.  There is a name
for this... it is called "retinal rivalry".  As you can perhaps guess
from the name, this situation is not desirable or pleasant.  It is
distracting and annoying most of the times (there are some glowing
exceptions but they are exceptions, not the rule).  I can tell you
for sure that judges will take points off because of this.  This
can also happen in twin camera shots when the cameras are not
well-synchronized.  It is generally considered a problem.  That's
why stereo cameras were invented! (In the very first years of
photography, most stereo pictures were taken with a single
camera and shift between exposures).

I mentioned earlier that successful single camera stereo is
difficult to do well.  One of the difficulties is avoiding movement
of the subject between shots.  Exactly why do you like this effect?

Thank you,

George Themelis