Three-Dimensional Photography - Principles of Stereoscopy

CORRELATION OF CAMERA AND VIEWER 67 intercept the original Pn plane at D” and G” instead of at D and G. As U’G” must equal A”C” ...

68 THREE-DIMENSIONAL PHOTOGRAPHY key plate, it may be easily followed. Here we see the elongation in depth and the increased app ...

CORRELATION OF CAMERA AND VIEWER 69 repeat the details in each instance. Figures 4-7 and 4-8 show the significant ray paths for ...

70 THREE-DIMENSIONAL PHOTOGRAPHY Figure 4-1 0 illustrates the significant rays for the condition wherein the camera base is less ...

CORRELATION OF CAMERA AND VIEWER 71 cent over normal. Figure 4-13 shows the result of viewing such a stereogram. The object disp ...

72 THREE-DIMENSIONAL PHOTOGRAPHY two points L-L’. The line wx passes through L and intersects the picture plane xz. Draw yz para ...

CORRELATION OF CAMERA AND VIEWER 73 grams with a greater than normal base. It is a practice which has been almost universally co ...

74 THREE-DIMENSIONAL PHOTOGRAPHY Fig. 4-17. Viewing stereo- Fig. 4-16. Cameras with gram made with cameras convergent axes. with ...

CHAPTER 5 MOUNTING, TRANSPOSITION AND SPACING o FAR WE HAVE CONSIDERED only the essential factors involved S in making the stere ...

76 THREE-DIMENSIONAL PHOTOGRAPHY rect position in space, If this plane is physically fixed by placing in it a sheet of glass, fo ...

MOUNTING, TRANSPOSITION AND SPACING 77 objects A, B, C and D included in the same positions. However, instead of two eyes, we ha ...

78 THREE-DIMENSIONAL PHOTOGRAPHY At the right the camera makes two negatives (even color film is developed as a negative before ...

MOUNTING, TRANSPOSITION AND SPACING 79 tinued, cross at a distance equal to the true distance of the original object. Thus the s ...

80 THREE-DIMENSIONAL PHOTOGRAPHY Many stereographers use a diamond point and cut glass nega- tives in a similar way. Obviously w ...

MOUNTING, TRANSPOSITION AND SPACING 81 shift slightly during the mounting, and an error of half a milli- meter is sufficient to ...

82 THREE-DIMENSIONAL PHOTOGRAPHY are stamped with the consecutive number of the films as well as the semi-circular and square no ...

MOUNTING, TRANSPOSITION AND SPACING 89 Fig. 5-7. Mounting errors. C shows the result of cutting the films obliquely along the si ...

84 THREE-DIMENSIONAL PHOTOGRAPHY E is the result of perpendicular alignment but with one image lower than the other causing a mi ...

MOUNTING, TRANSPOSITION AND SPACING 85 Rotary alignment. The worst fault of all is to have the true per- pendiculars leaning at ...

86 THREE-DIMENSIONAL PHOTOGRAPHY zontal distances separating the two images of the various objects of Fig. 5-4 (homologous dista ...