KODAK BALL BEARING SHUTTERS
This shutter works automatically and operates with remarkable smoothness and precision. The leaves are made in five segments, mounted entirely on ball bearings, and open and close in the form of a star, admitting a much greater amount of light in the same space of time than any other type of shutter. All except the No. 0 have variable indicated speeds of 1/25, 1/50 and 1/100 second, operate for bulb or time exposures, and are fitted with indicator for registering each exposure as made. The No. 0 is graduated for speeds of 1/25 and 1/50, has no registering device and operates with finger release only.
The Kodak Ball Bearing Shutter is supplied with the Premoette Jr. No. 1A, Film Premo No. 1, Pocket Premo C and Premo No. 8; the No. 0 size with Premoette Jr. No. 1.