Shutter Mechanical Details - Polaroid Land SX-70 User Manual

F. SHUTTER MECHANICAL DETAILS
(Figure 2-9)
The following paragraphs describe the manner in
which the mechanical components of the shutter
respond to either manual or electrical direction.
1. When the operator prepares to take a picture,
he first must aim and focus the camera. As he
rotates the focus wheel to bring the split Fresnel
Figure 2-9 Shutter, exploded view
image into focus, a cam molded into the rear
surface of the focus wheel moves the component
identified as the cam follower assembly. The
trim link coupled to the trim assembly is pinned
to the cam follower in such a way that follower
movement is also directly influenced by the
setting of the trim wheel. (The trim wheel is the
lighten / darken control on the photocell.)