Leaf Shutter

Simple leaf shutter

1. Shutter plate
2. Aperture covered by leaf shutter
3. Aperture during exposure
4. Leaf blade
5. Catch mechanism
6. Butterfly spring

• Relatively simple construction is possible.
• No cocking mechanism
• No variable shutter speeds
• Less costly than a focal plane shutter
• Flash synchronization possible at all speeds.
• Small size is achieved by placing the shutter at the focal convergent point either inside the lens or inside the camera body.
• Many versions have no connection between the release mechanism and the film advance, making multiple exposures possible.

• Shutter speeds are limited to 1/500th or 1/250th of a second.
• Although also listed as an advantage, accidental multiple exposures are common problem.
• Imprecise speeds (e.g. Holga camera)

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