Three-Dimensional Photography - Principles of Stereoscopy

FLASH IN STEREO 107

a display mannequin as the model so that any difference must neces-
sarily be a result of the technique, not of any change in the model.

Fig. 7-1.

Figure 7-1. Note that there is a slight halo of shadow all around

the head. You will also see that this halo at the right is just a bit

more broad in the right image than in the left one. Examine the

nose with a stereoscope, and you will see that its projection is

somewhat vague. In fact you are inclined to overlook the fact that

there is a nose there.

Fig. 7-2.

Figure 7-2. This is made with the flash mounted at the side of

the camera upon the conventional press-camera bracket. Note that

the shadow at the left is somewhat wider than it is in the first

illustration, but of much more importance, note that the nose