Metering control mechanism

Details Metering control mechanism Metering control mechanism

1989-05-09

1990-02-20

Hix, L. T.

G03B 100

Patent

active

049030612

ABSTRACT:
An expose-on rewind type camera is used with a film cassette having a film spool which can be rotated to unwind a filmstrip off the spool to thrust a non-protruding film leader to the exterior of the cassette, to enable the filmstrip to be prewound continuously onto a take-up spool in the camera, and alternatively to rewind the filmstrip into the cassette a single frame increment following each exposure in the camera. During the prewind mode of the camera, a metering pawl is retained out of the way of the filmstrip to prevent the pawl from engaging the filmstrip at any of its metering perforations. The metering pawl is allowed to contact the filmstrip in response to change-over from the prewind mode to the rewind mode of the camera, to permit the pawl to meter the filmstrip a single frame increment preparatory to each exposure.

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