Wallaston's diaphragmatic shutter

Made:
1883-1893 in London
maker:
Mudford

Large shutter with 58mm od lens thread. Contains rotating aperture plate with 7 apertures. Two shutter blades opening and clising speed controlled by adjustable friction device. Pneumatic release connection. No. A23. Mudford. 1883-1893.

Details

Category:
Photographic Technology
Object Number:
1990-5036/3783
type:
shutter
credit:
The Kodak Collection at the National Media Museum, Bradford

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