Science Fair Project Encyclopedia
Simple leaf shutters typically have only one shutter speed and are commonly found in disposable cameras and cheap point-and-shoot cameras. In its more complex forms it can have variable shutter speeds.
Simple leaf shutter
- Shutter plate
- Aperture covered by leaf shutter
- Aperture during exposure
- Leaf blade
- Catch mechanism
- Butterfly spring
The main advantages of the leaf shutter are:
- 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.
Some of the disadvantages of the leaf shutter are:
- 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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