This shutter is automatic and as its leaves are mounted on ball bearings it operates with remarkable smoothness and precision. The leaves open and close in the form of a star, admitting a much larger amount of light in the same space of time than the ordinary type of shutter. All but the No. 0 work with bulb or finger release and have variable indicated speeds of 1/25, 1/50 and 1/100 second as well as bulb and time exposures.

They are also fitted with indicator for registering each exposure as made and iris diaphragm.

Supplied with Kodak Junior No. 1A, and Folding Pocket Kodaks, Nos. 1A, R. R. Type; 3, 3A and 4. The No. 0 is supplied with the Vest Pocket Kodak and Vest Pocket Kodak Special, and is similar to the above excepting that it works with finger release only, has variable speeds of 1/25 and 1/50 second, and is regularly equipped with the Kodak Autotime Scale. The No. 0 is also supplied with the Kodak Junior No. 1, but in this instance is not fitted with autotime scale.