British Kinematography (1953)

45 BRITISH KINEMATOGRAPHY Vol. 23, No. 2 Fig. 2. The J.A.R.O. 3 5 mm. TripleHead Projector. through which the film is moved by a Newall camera-type movement. This movement has been provided with a shrink adjuster — very useful when projecting " green " prints or for running in reverse. The main driving motor and gear box operate through a clutch which can be disengaged while the projector and camera shutters are synchronized and the driving motors energized. The entire head assembly is blimped which renders it quite silent for use when recording sound. The J.A.R.O. 35mm. Triple-Head Projector This projector, shown in Fig. 2, is, in effect, three single-head projectors mounted on a common base. Each of the three heads is similar to that already described. Crossmotion of the lenses is used to effect superimposition of the three images. When several images from separate heads are to be superimposed a very high order of steadiness in the movements is required. In both this projector and the single-head projectors remote control of the objective lens can be exercised from the camera position. In this way, it is possible to move the projected image horizontally and vertically, and to focus, while viewing the composite scene through the taking lens. The J.A.R.O. Still Plate Projector This projector, which was fully described in British Kinematographv2, is shown in Fig. 3. Many of its features are based on the 35mm. projectors already described. Its light output is about double that of the 35mm. projector. Equipment of this type opens up an extensive new field to art directors who have only had experience of 35mm. back projection. When, on location, action is covered by the still photographer, an inexpensive supply of background material is automatically obtained. These stills can often be utilized for still plate projection, readily enabling new scenes and inserts to be made and cut in with original location material.