Page 133 - The Wellington photographic handbook

Two methods are at the disposal of the worker ; he may print
the clouds on to the same plate as the landscape, or he may print
them on a separate plate, and bind this up film to film with the
landscape so as to form a cover glass.
If it is desired to print the clouds on the same plate as the
foreground, it is first necessary to cut two masks, one to cover
the sky while the exposure of the landscape is being made, and the
other to cover the landscape while the exposure of the sky is being
made. This is best done in the following manner.
Take a piece of P.O. P. and cut it exactly to the size of a lantern
plate (3|x3£). Place this on the landscape negative so as to
include just the portion that is to be used for the slide, and with
a finely pointed lead pencil, mark the exact position of the corners
on the film of the negative. Now print until the horizon line is
distinctly visible, and then neatly divide the paper along this line
with a sharp knife or a pair of scissors. The two pieces of paper
are then allowed to darken by exposing them to the light.
Take the sky portion and with a touch of gum or seccotine
attach it, emulsion side up, to the glass side of the landscape nega-
tive, so that it exactly covers up the sky, taking care that the
two top (i.e., square) corners exactly coincide with the pencil dots
on the film of the negative. If the mask curls away a little along
the divided edge, so much the better, as it will help to soften the
sky line when printing.
Now take the second or landscape mask, and attach this,
emulsion side up, to the glass side of the cloud negative, marking
the position of the two square (i.e., uncut) corners on the film of
the cloud negative with a lead pencil, as before. The cloud negative
is now placed in the printing frame, a lantern plate adjusted over
it so that two corners exactly coincide with the dots previously
made, and the exposure is given. The cloud negative is then
replaced by the landscape negative, the lantern plate adjusted
so that its four corners correspond with the four pencils dots, and
the exposure for the landscape is made. To avoid the mistake
of printing clouds and foreground on the same half of the slide
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