DOUBLES " AND " TREBLES." These ingenious arrangements, in whicl the same person is seen talking to, drink ing, or playing cards with himself, are managed as follows : A square wooder tube is made with an opening the sarm size as the glass of the focussing screen. and as long as the focal length of the lens to be used. This is blacked inside. and at one end is provided a rebate with turn-buttons. The furniture of the roomy having been suitably arranged for all the positions, the model is placed in the first position, and, using the ground glass ai a guide, a piece of thin tin or zinc, oi even stout cardboard, is cut to such shape as will mask out the remaining Lion of the plate. A similar piece is cum for each of the positions. The square tube is now placed against the camera front, with the rebate outside, and the first piece of shaped metal cp.: cardboard
is fastened in position by means of the turn-buttons, the first exposure being ther given. The model is then shifted and made to assume the second position, the masking on the front of the tube suitably changed, and the next exposure given, and so on. Care should be taken that the exposures are equal. Another method is to take separate negatives of each posi tion, cut the figures out of the resulting prints, paring the edges with a shall] knife to prevent the overlapping being manifest, and to stick them on a- suitable print of the pre-arranged background. A copy negative is then made from the com posite print. The latter method obviously allows the figures to come in front of, or overlap, each other if necessary, which cannot be done in the previous way.