An adjustable aperture plate
Category
Photographic technology
Date
1870 - 1890
Materials
Metal
Measurements
75 x 54 mm; 1 mm (thickness)
Order this imageCollection
Fox Talbot Museum, Wiltshire
NT 1525082
Summary
An adjustable aperture plate. The unit is all metal and has two sliding plates which together form a square opening. These two are mounted on a rotating disc which moves against a scale ranging 45 to 135 degrees. The two sliding plate show markings 5 - 8 ,presumably corresponding to aperture settings.
Provenance
Part of The Fenton Collection. A gift from British Film Institute in 2017. From 1986-1999, part of BFI collection for the Museum of the Moving Image. BFI purchased collection in 1986 from James Fenton's Museum of Photography, Port Erin, Isle of Man 1976-1986