“Projection Instructions: 1. place 2 projectors close, side by side; do not load film yet. 2. turn on bulbs and find less intense bulb – use that faint bulb for the inner image (it is important that the inner image be dimmer; if necessary put a neutral filter of about 1 stop in front of lens). 3. you MUST HAVE AT LEAST ONE ZOOM LENS, so that one image can be put inside the other (the precise proportion is shown in a drawing accompanying the prints); another way of doing this is to move one projector forward until the right size is reached – but this cannot be done in a projection booth because there is not enough space. 4. make sure that inner rectangle is precisely placed so that the top and bottom borders and the sides are exactly equal – there should be absolutely no keystoning – this is of IMPORTANCE. 5. thread film and go to the punch mark on each reel. 6.ADVANCE THE FOOTAGE FOR THE INNER SCREEN 24 frames AHEAD OF THE REEL FOR THE EXTERIOR IMAGE – THIS SLIGHT OUT-OF-SYNC IS CRUCIAL TO THE EFFECT OF THE FILM. 7. start both projectors at the exact same instant. 8. FOCUS BOTH PROJECTIONS ON THEIR EDGES – the sharpness of the edges is also crucial.”
