Three-Dimensional Photography - Principles of Stereoscopy

STEREOGRAPHIC TECHNIQUE 101

slots are usualIy indexed and blank cards supplied. When card-

board mounts are used, two slides may be filed in each division

thus doubling the capacity of the drawer.

However, when rigid card mounts are used, the individual

divisions may be omitted, but it is advisable to have the drawer

divided by a partition about every two inches more or less to pre-

vent a small number of slides from becoming mixed in a long

drawer.

It is not necessary to buy a commercial cabinet. In fact, if the

collection promises to grow to any great extent it would be ad-

visable to make or have made a cabinet with a capacity of not

less than 5000 slides. You should allow about 18 inches of drawer

space for each 100 glass slides or about eight inches for each 100

rigid card slides.

INDEXING-The collection does not have to be very large before

indexing is necessary and this necessitates adding a number to

10

7

4

3

2

1

8

%

A B C D E

2

Fig. 6-5. Slide Indexing.