Shutters

• RE variable speed
• Other examples
• ghosting

A shutter is a rotating device with a single blade or multiple blades used to interrupt the light source as film is pulled through the gate.

Types of Shutters

(some examples of projectors who use them)

• single blade (Kinoton, Ernemann)
• dual blade (Simplex XL)
• dual blade counter rotating-dual shutter (Century JJ)
• 3 blade (often used for variable speed)
• 3 blade counter-rotating dual shutter
• 5 blade single (pretty rare, used for studio machines involved with telecine.