Abstract: A shutter intended for use with a light-sensitive material. The shutter includes a light-blocking disk having a light-passing portion through which light can pass to reach a light-sensitive material. The disk is rotated to locate its light-passing portion in line with the light-sensitive material to allow light passing through the light-passing portion to advance towards the light-sensitive material. The shutter also includes a capping element which is moved between a light-blocking position and a non-light-blocking position relative to the light-sensitive material and the light-passing portion of the disk. A single sensor is used to detect a predetermined rotational position of the disk and in response thereto the capping element is moved from one of its light-blocking and non-light-blocking positions to the other.

Abstract: A single-use camera includes an external housing (290, 292), within the housing a camera frame (100) having an exposure opening (102), a first chamber (104) on one side of the exposure opening for receiving a light-tight film cartridge (18) enclosing a filmstrip (36); and a second chamber (108) on an opposite side of the exposure opening for receiving a scroll (268) formed from a filmstrip, and a separate retainer cap (80; 210-216; 220-234) located in the second chamber for engaging an end of the scroll to prevent clock-springing of the scroll.