Preface Acknowledgements Author biography Part �� The physics of light detectors 1 Detectors and the characteristic curve 1.1 The physics of photons 1.2 Photoelectric detectors 1.3 Photochemical detectors 1.3.1 Negative and positive 1.4 Basic photochemistry 1.5 The eye as a detector 1.6 Exposure, density, and the characteristic curve 1.6.1 The characteristic curve and photoelectric detectors References 2 Silver gelatin photochemical detectors 2.1 Black-and-white silver gelatin emulsions 2.2 Chromogenic color emulsions 2.3 Reversal-processed silver gelatin emulsion 2.4 Lumen process 2.5 Ephemeral process (EP) 2.5.1 How does it work? 2.6 Instant film 2.6.1 Peel-apart instant films 2.6.2 Integral films References 3 Other photochemical detectors 3.1 Daguerreotype 3.2 Wet collodion, ambrotype, and tintype 3.3 Cyanotype and Van Dyke processes 3.3.1 New cyanotype 3.3.2 Van Dyke brown process 3.4 Platinum and palladium processes 3.5 Gum bichromate 3.6 Anthotypes and chlorophyll prints 3.6.1 Anthotypes 3.6.2 Chlorophyll prints References 4 Some interesting technical details 4.1 Reciprocity failure 4.1.1 Reciprocity failure and VLS photography 4.2 Solarization 4.2.1 Sabatier effect 4.2.2 True solarization 4.2.3 Mackie lines 4.2.4 Negative or positive? References 5 A brief diversion into the weird world of the photon 5.1 Young's double-slit experiment and the wave model of light 5.2 The photoelectric effect and the particle model of light 5.3 Young's experiment reconsidered