Illingworth Actinometer

Illingworth Actinometer

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Two hinged brass strips - one with small cylinder for sensitive paper and milled grooved, the other with circular aperture and standard tints (missing). For carbon printing.

Details

Category:
Photographic Technology
Collection:
Kodak Collection
Object Number:
1990-5036/3801
Materials:
brass (copper, zinc alloy)
type:
actinometer
credit:
The Kodak Collection at the National Media Museum, Bradford