Photographers
using the view camera can use
the movements of the camera to
create several points of sharp focus that contradict each other because
of their positions on different planes in the subject.
I
have also achieved a similar but different result from using
a Widelux panoramic camera
and not putting the film through the guides in the correct way.
This alters the focus distance between the lens and that part
of the film and produces images that can be in focus in the
foreground, fall off to out of focus and then fall back into
focus in the distance. As the image projects out side past the
sprocket holes in the area not correctly threaded through the
guides, the image produced on the negative has a strange shape.
In
terms of areas in focus, an uninformed audience might only
sense there is something strange with the image that pulls
them to certain areas.
The
resulting images might challenge the audiences understanding
of photographic sharpness, they tend to first be drawn to
the areas of sharp focus. This can be used to create an effective
tension between the juxtaposition of these areas of sharp
focus, to play one off against another.