Re: Brian Reynolds -first stereocards

[P3D Brian Reynolds <reynolds@xxxxxxxxx>]

Ray Zone wrote:
> 
> Thanks for posting your first stereocards, Brian.  And
> congratulations on working in this great vintage (new) medium.  I'm
> wondering why you didn't use a wider stereobase for the city images
> which have minimal parallax and little depth as a result, much like
> many of the old stereocards which showed scenics at a great distance
> yet were relatively flat because they only used a 3" base. The
> subject matter seems appropriate for a "weight shift" (rock 'n roll,
> or "cha cha" sidestep as Paul Wing calls it) which could really
> emphasize spaces between the buildings with a stereobase measurable
> in terms of feet rather than inches.
> 

The first stereo pair I took was with a 4x5 pinhole camera (see the
link pointing from the second cityscape), and used the normal 65mm
separation.  When I took the slidebar Lubitel images I had heard that
stereo pairs with a lot of depth at a distance should use a greater
separation, so I used the maximum that my macro rail would allow,
about 6 inches.  Since then it has been suggested that I should try
using a stereo base of about 2m.  I've been thinking about how to do
that without introducing convergence (perhaps by taping a string to
the walls of the room I'm shooting from and then aligning the camera
back to the string, or aligning the front of the camera to the edge of
the window sill).  Given Dr. T's recent posts on convergence, and when
to not worry and get the image, I'll probably load film in the camera,
just take the pictures, and see how things turn out.

By the way, I'm not particularly happy with the images as they exist
on my web page.  The originals are much easier to see depth in.  The
scans appear much grainier than I would like.

-- 
Brian Reynolds                  | "Humans explore the Universe with five
reynolds@xxxxxxxxx              |   senses and call the adventure science."
http://www.panix.com/~reynolds/ | - Edwin P. Hubble


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