Pentax IQZoom 135 M - Rewinding Film in Mid-Roll; Mid-Roll Rewind Procedure

If you wish to unload a film before exposing
all the frames, push the mid-roll rewind but¬
ton with the protrusion part of the strap
clamp; the lens retracts and then film
rewinding starts. When rewind is complet¬
ed, the motor stops, and (0) blinks, indi¬
cating that the back cover may be opened
safely.