Camera Shutter

What are the parts of a camera shutter and leaned to move from the periphery to the center?

A closed shutter provided one seems shells on the other to cover the whole circle of the opening of the camera lens. What are the different "clam shell" shaped? How are used? How are clams resting on the perimeter of the opening goal and how you came to the edge of the lens opening when the shutter button is clicked? Where clamshells go when you open the diaphragm? In science fiction movies are the doors that seem shutters of the camera. Where are the parties when the door opens?

I often wondered about that too! I just did a search for "blinds leaf" and this is http://pheugo.com/cameras/diaphragm/diaphragm.html useful as home

Camera Shutter

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