Three-Dimensional Photography - Principles of Stereoscopy

100 THREE-DIMENSIONAL PHOTOGRAPHY

of such system) will serve. Therefore the stereographer should
start some kind of filing system with his first roll of pictures.
There are special cabinets of various types on the market, and

Fig. 6-3. Masks (C). The diamond shape is acceptable if novelty

masking is essential, but plain masks, either circular or rectangular,

are best.

Fig. 6-4. Masks (0). Of all the non-rectangular shapes, the circular
(and oval) is perhaps the most generally acceptable.

the choice will depend largely upon the type of mounting you
use.
Glass and other thick slides are best filed in a drawer cabinet
equipped with guide slots to keep the slides separated. These