Re: RBT S1 - final report

[P3D Dr. George A. Themelis <fj834@xxxxxxxxxxxxxxxxxxxxx>]

>First, is the viewfinder on the extreme left of the twin combined
>cameras ? And hence the view is about 100mm of where it should be,
>is there anything to compensate for that?

The viewfinder is in the left side of the lenses. The camera has an
automatic parallax compensation and you can see that the viewfinder lines
change as you focus closer.  However, I have only noticed the top line
changing and not the side ones.  In a few extreme close-ups I noticed that
the subject was not properly centered.  So, the camera might not compensate
for right-left.  This, of course, can only be a problem for close-ups, not
regular shots.  Also, because I mounted my slides in 7p mounts, this was 
not a problem for me.

Related to this question is the question of built-in window.  By
freeviewing the uncut roll I noticed that there is a stereo window build
into the camera.  This is good news for those we will do 2x2 pairs.  Slides
with commercial mounting will work without much fuss.  The instructions
that I received were for one camera.  No mention of built-in window. 
Perhaps Jon Golden might know nore.

>Second, the auto focus mode, do you know if it is working in such a
>way that the sensor asigned with your viewer measured the distance
>and then sent the stream of data to both lenses at the same time ?
>I was trying to accomplish that when I shot a 3-d book for Taiwan
>for a lady singer in Greece in 1994 with two Canon EOS-5s. But it
>didn't work, and we have to simply had to set up very carefully for
>each individual shots and used manual focus.

There is only one sensor and two lenses.  I assume that the information
from the sensor is being sent to both lenses at once.  I did not see any
differences in focusing between the two lenses.  

Lady singer in Greece???  3-D book???  3-D book for a lady singer in 
Greece???  A couple of interesting subjects linked together... 
More information please!

>Third, the two aperture rings, are they linked to move together, or they
>need to be set separately?

They are linked and move together.  There is one dial at the top.  You turn
the dial and both apertures move at the same time.  No physical
connections.  This is done electrically/electronically.

George Themelis


------------------------------