used to increase the depth of field. When the swing back
is swung, the film is not parallel with the image
produced by the lens. By swinging the lens, you can
bring the image onto the same plane as the film.
camera up to photograph a subject, such as a building,
the vertical lines on the ground glass appear to converge.
When this distortion is not corrected, the subject appears
smaller at the top and the vertical planes bend toward
the center of the image (fig. 4-24, view A). To correct
this distortion, tilt the tilt back so it is parallel to the
vertical plane of the subject (fig. 4-24, view B).
distortion, the film plane is no longer parallel to the
image produced by the lens. By tilting the front standard,
you can bring the image of the lens onto the same plane
as the film.
Basic Photography Course