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The Manual of Photography and Digital Imaging, 10th Edition by Sophie Triantaphillidou, Elizabeth Allen

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Chapter   | 8 |

Sensitometry

Geoffrey Attridge

All images © Geoffrey Attridge unless indicated.

INTRODUCTION

The objective study of the response of imaging systems to light or other radiation is called sensitometry. It is concerned with the measurement of the exposure that a material has received and the amount of the resultant image. Sensitometry in silver-based photography which is the subject of this chapter is assessed by the amount of blackening, silver image formation, which takes place. In digital imaging sensors it is assessed by the output voltage, or the output pixel value and will be discussed in detail in Chapters 14 and 21. It is possible to produce photographs without any knowledge of sensitometry, but to obtain the best performance ...

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