LESSON 3
PERFORM COPY PHOTOGRAPHY
TASK
Describe procedures for making a photographic copy.
CONDITIONS
Given information and diagrams on how to mount an original, place the lights, focus the camera, and
determine and make exposures.
STANDARDS
Demonstrate competency of the task skill and knowledge by correctly responding to 80 percent of the
multiple-choice test covering procedures for making a photographic copy.
REFERENCES
TM 11-401, TM 11-401-2
Learning Event 1:
MOUNTING ORIGINAL FOR EXPOSURE
1.
Selecting correct backing. Translucent originals, material that passes diffused light, should be
backed with white paper when there is print on only one side of the original and with black paper when
there is print on both sides. Much of the light shining on translucent originals is reflected to the camera.
Some of the light that goes through the original, is reflected off the white paper backing, and is sent back
through the original to the camera. This makes the whites whiter and the blacks blacker. If the original
has print on both sides, then the light reflected off a white backing would be blocked by the printing on
the back of the original and an image of this printing would appear on the film. So you should use a
black backing to absorb all the light that passes through an original that has printing on both sides.
2.
Placing the copy original. Mount the original and backing upside down and flat on a copy board
or easel parallel to the film plane. It should be centered with the optical axis of the lens (fig 3-1). Place
the original parallel with the film to prevent distortion due to perspective. Centering the original with
the optical axis of the lens aids in framing and minimizes
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