c. Usually wide-angle, normal and telephoto lenses are used to achieve
desired coverage of an area.
However, occasions do arise when the subject
extends beyond the field of view of a wide-angle lens. In such cases, several
exposures are taken of the subject in such manner that they can later be fitted
together to produce the desired coverage.
d. In "swing" panoramic, an ideal viewpoint is selected from which can be
seen the entire area to be included in the completed panoramic. The camera is
set firmly on a tripod, and a series of exposures is made of the target, swinging
the camera from left to right, beginning at the left end of the target and making
successive exposures until the right end of the target has been photographed.
e. The "swing" panoramic procedure must incorporate a 50 percent overlap
between exposures. In practice, the photographer follows these steps:
(1) Place the extreme left of the target in the exact center of the
viewfinder and make an exposure.
(2) Swing the camera, without moving the lens up or down, until the object
which occupied the center of the viewfinder in the first photo is now at the left
edge of the viewfinder.
(3) Now make exposure #2, then swing the camera to the right again, until
the object which occupied the exact center of photo #2 lies at the left edge of
the viewfinder for exposure #3.
(4) This procedure is repeated until the right end of the target is dead
center in the viewfinder, at which time the final exposure is made (fig 1-3).
f. The other type of panoramic is termed a "moving" panoramic and is useful
when foreground obstructions exist or if the area is too narrow, making it
impossible to view the target successfully by use of the "swing" panoramic
technique. Here, too, the camera is placed firmly on a tripod and a series of
exposures made.
But the difference is the fact that the camera is pointed in
exactly the same compass direction for each of the exposures. The photographer
takes exposures at equally spaced points, traveling along an axis exactly
parallel to the target being photographed. (fig 1-4).
g. Just as with the "swing" technique, the "moving" technique must
incorporate a 50 percent overlap between exposures.
In practice, the
photographer shooting a "moving" pan does the following (fig 1-4):
(1) The photographer sets the camera up directly across from the left end
of the target, so the lens-board is parallel to the subject being photographed in
the exact center of the viewfinder. The photographer then makes exposure #1.
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