Black and white lantern slide featuring a captioned image of emulsion grains. The text describes the size of different film speed grains.
This is one of of 16 black and white lantern slides covering the history of photography and emulsion making. These were likely used in educational or training presentations, circa 1950s.
This series is part of the Kodak collection of products, promotional materials, photographs and working life artefacts collected from Kodak Australasia in 2005, when the Melbourne manufacturing plant at Coburg closed down.
Kodak manufactured and distributed a wide range of photographic products to Australasia, such as film, paper, chemicals, cameras and miscellaneous equipment. Its client base included amateur and professional photographers, as well as specialist medical and graphic art professionals who used photography, x-ray and other imaging techniques.
Description of Content
Illustration of emulsion grains with caption beneath.
Square black and white lantern slide sealed with black paper edge-binding strips.
Donation from Kodak (Australasia) Pty Ltd, Ms. Kate Metcalf - Kodak (Australasia) Pty Ltd, 2005
Courtesy of Kodak (Australasia) Pty Ltd.
Lantern Slide, Standard (3¼ in. x 3¼ in.), Black & White
Printed: 'GRAINS of photographic emulsion are tiny crystals / of silver salts suspended in gelatin. The grains of a / high-speed negative emulsion are about .001 millimeter / across; those of a low-speed positive emulsion, .0001 millimeters'
Type of item