Brownie Ball Bearing Shutter
Reading edition
The ball bearing type of shutter has been found so accurate and reliable that we have designed a shutter on the ball bearing principle for the 3 and 3A Folding Brownie cameras.
This shutter is well made in every respect, it works with bulb and tube or finger release, and is fitted with the Kodak Autotime Scale—a great help for amateur photographers, especially beginners.
The Brownie Ball Bearing shutter works not only for time and bulb exposures, but has variable indicated speeds of 1/25, 1/50 and 1/100 second. It is fitted with iris diaphragm and supplied with the Nos. 3 and 3A Folding Brownie cameras.
For a more complete description of the Kodak Autotime Scale supplied with this shutter, see page 8.