To improve DOF the technique is to proceed layer by
layer: take a picture, change the focus by a small amount so another part of the
image is in focus, take another...
) that will extract only the parts in sharp focus and merge them all in one
picture.
Of course in 3D it's more complicated ! At the french stereo-club we
have a fellow member that is a specialist of this, taking 60-80 pictures for
just one stereo pair.
His pictures are stunning.
Pierre
Meindre.
>
Deriving inspiration from my recent acquisition of a
microscope as previously posted, I bought another, but one for viewing in
stereo.
Then I acquired a USB camera designed to be inserted
into the eyepiece tube(s ) , enabling right and left chips
to be made for 3-D photography. Each image was
then opened in Photoshop, enhanced, and finally converted to an
anaglyph
in SPM.
This is my first attempt. At left is the small
rock that became the subject for the resulting ana at right. The
main drawback,
which may be insurmountable is the shallow
depth-of-field due to the high magnification. In the future I may have
to
use smaller subjects to get around the DOF
situation. It looks like there will be lots of upcoming experimentation in
store!
Marshall
