Polaroid Miniportrait 485B - Shutter Operation and Flash Synchronization; Overall Summary

8
Shutter Operation and Flash Synchronization
Overall Summary
The Shutter operates mechanically, first rotating a Light Interception Blade, then a
Shutter Blade (Figure 2-2).
The Light Interception Blade uncovers Baseplate openings in line with the lenses. The
Shutter Blade then exposes the film as its openings sweep past the Baseplate
openings.
Releasing the Shutter Button returns both blades to their starting positions.
Figure 2-2. Light interception blade (A) and shutter blade (B) positions
Lenses
Baseplate
Light
Intreception
Blade A
Shutter
Blade B
Release Lever
Film
Rotates first out of
image path.
Rotates second to
expose film.
Baseplate