The Origin of Gamma in Photography Part One

Описание к видео The Origin of Gamma in Photography Part One

Gamma in photography popularly means contrast. But why is this Greek letter used? Who started using it and when? I spent some time investigating this and came up with the answers. In this video I give the answers to these questions.

Links:
Hurter and Driffield 1890 paper:
https://archive.org/download/memorial...
Davis and Walters 1922 paper:
https://archive.org/details/sensitome...

Ilford FP4 datasheet:
https://www.ilfordphoto.com/amfile/fi...

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