P3D DOF and Hyperfocal distance - part III

["Dr. George A. Themelis" <DrT-3d@xxxxxxxxxxxxxxxxxxxxxxxxxxx>]

And here comes the good part!  How to actually take pictures!

If you take general scenics and include infinity, I recommend
not placing anything closer than 7.5 feet.  This will give stereos
with good depth range that can be projected in a large screen
without any problems.

Note that the hyperfocal distance for f8 is 15 feet which means
that everything from 7.5 feet to infinity will be sharp with f8
(or any aperture smaller than f8, like f11 or f16).  Based on this, 
I recommend the following manual settings for your stereo camera:

Shutter  f-stop  Light Conditions
-------  ------  ------------------------------------------------
 1/100    f22    Extremely bright w/sand or snow    
 1/100    f16    Sunny and bright, distinct shadows
 1/100    f11    Weak sun, soft shadows, side light at bright sun
 1/100    f8     Cloudy, no shadows
 1/50     f8     Heavy overcast, bright shade
 1/25     f8     Dark shade

Leave the focus FIXED at 15 feet.  No reason to adjust focusing if your 
scene includes infinity.  Everything will be sharp from 7.5 feet to
infinity.

George Themelis


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