Volute shutter and Busch lens

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Volute Variation 2 – c. 1900

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Volute shutter and Busch lens

Volute Variation 2 – c. 1900 Bausch & Lomb’s Volute was an advanced standard shutter construction with wider shutter speed range from 3 to 1/150 seconds, plus B and T mode. It had two characteristic pistons, one to connect the tube of the release bulb, the other as part of the speed setting mechanics. For aperture setting it had a built-in iris diaphragm.