n.2 modified projectors with variable transformers, n. 1 film length, n. 1 gel, digital delay and equalizer.
The notion of the additive or subtractive influence of light is made concrete by means of a brass plate cut and fitted to the pressure plate assembly of a projector. The projector adorned in this way was also disabled by removing the lens, allowing light to shine directly onto the moving film surface unobstructed by the influence of a shutter. The transport mechanism was used to carry a length of unexposed black and white film from beginning to end. During this motion, the light sensitive emulsion was exposed to stroboscopic light of varying frequencies, derived by multiplying the film transport rate by arbitrary rational numbers (1/2, 3/8, 1/4 & 1/8). Light, therefore, was distributed on the film surface as apportioned by the reciprocal effects of the projector and the strobe, and modified by the intervening sculpted brass plate. The patterning of emulsion was continued onto the sound track to create a signal for manipulation, by use of a digital delay, equalizer and loudspeakers.