Polaroid MiniPortrait 203 - Framing and Composition Techniques; Viewfinder Aiming and Framing Aids; Accurate Aiming and Framing

8
When the Shutter is released and the Motor runs, pin (b) rotates one-half turn, moving
the forked lever (4) in the arrow direction shown in Figure 6. This causes pin (b) to
rotate the Light Interception Blade (5), closing the aperture.
Figure 6. Closing aperture