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*If the shutter isn't timed properly you will see a travel ghost or [[ghosting]] on screen. This happens because the shutter isn't completely blanking out the light onto the film plane as the pull down motion of the intermittent occurs. | *If the shutter isn't timed properly you will see a travel ghost or [[ghosting]] on screen. This happens because the shutter isn't completely blanking out the light onto the film plane as the pull down motion of the intermittent occurs. | ||
===Types of Shutters=== | ===Types of Shutters=== | ||
The type of shutter used depends on the type of projector, the pull down speed of intermittent mechanism, the desired light efficiency, among other variables. Models of projector that commonly use these types of shutters are listed in parentheses. | |||
The type of shutter used depends on the type of projector, the pull down speed of intermittent mechanism, the desired light efficiency, among other variables. | |||
* single blade ([[Kinoton]], [[Ernemann]]) | * single blade ([[Kinoton]], [[Ernemann]]) | ||
* dual blade ([[Simplex XL]]) | * dual blade ([[Simplex XL]]) | ||