Asahi Pentax ES Operating Manual Excerpts
MULTIPLE EXPOSURE
For deliberate multiple exposures, make the first exposure in the normal way. Then tighten the film by turning the rewind knob (1), and keep hold of the rewind knob. Depress the film rewind release button (2) and cock the rapid wind lever. This tensions the shutter without advancing the film. Finally, release the shutter to make a second exposure. Then make one blank exposure, before taking the next picture, to avoid overlapping. Registration may not be exact.
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