B&L Automatic Shutter
Revision as of 06:44, 23 March 2011 by Hanskerensky (talk | contribs)
Bausch & Lomb's Automatic shutter was still one with pneumatic controls, with one cylinder to connect a bulb's flexible tube, the other to regulate speed. It included a diaphragm and a shutter release lever. It fitted two-part screw-mount lens kits.
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