FIG. 32.

Focus must be taken accurately, so that the outlines of the figure are perfectly sharp.

As it is the object to obtain a perfectly transparent, glass-clear silhouette upon an absolutely opaque ground, but a very short time of exposure is required.

Develop as usual and to secure perfect opacity intensify more than usual. Plates of lower sensitiveness invariably give the best results. A slow plate or one made particularly for reproduction is well adapted for this kind of work. With ferrous oxalate or hydrochinon developer there is scarcely any need of intensifying.

FIG. 33.

FIG. 34.

To obviate the shadows cast upon the floor by the lower parts of the figure, place it upon a thick, large plate-glass, supported by props of five or six inches in height, and spread upon the floor under the glass a piece of white muslin. The muslin must be free of folds or wrinkles, and be so connected with the white screen, that the division line between is not reproduced upon the plate.