
audiobook
by S. D. (Samuel Dwight) Humphrey
A PRACTICAL MANUAL OF THE COLLODION PROCESS, GIVING IN DETAIL A METHOD FOR PRODUCING POSITIVE AND NEGATIVE
By S. D. HUMPHREY.
PREFACE TO THE THIRD EDITION.
PREFACE TO THE FIRST EDITION.
PART I - CHAPTER I.
CHAPTER II.
CHEMISTRY.
CHAPTER III.
CHAPTER IV.
CHAPTER V.
Step into the world of nineteenth‑century photography with a clear, hands‑on guide that walks beginners through the collodion process, the technique that once transformed glass and paper into vivid images. The author strips away the confusing tangle of competing methods, presenting a single, reliable workflow that covers everything from preparing the sensitized plate to exposing and developing a clean, sharp picture. Along the way, readers learn the fundamentals of light—prisms, spectra, refraction—and how these principles shape every successful exposure.
Beyond the core instructions, the manual also gathers contemporary patents and experimental variations, giving curious practitioners a roadmap for exploring alternatives without becoming overwhelmed. Detailed diagrams illustrate each step, while practical tips on lighting, chemicals, and equipment keep the studio work manageable and repeatable. Listeners will come away with both the confidence to try their first wet‑plate photograph and a solid grounding in the science that still underpins modern imaging.
Language
en
Duration
~5 hours (308K characters)
Publisher of text edition
Project Gutenberg
Credits
Produced by Tom Cosmas produced from files generously provided on The Internet Archive. All resultant materials are placed in the Public Domain.
Release date
2020-10-21
Rights
Public domain in the USA.
Subjects
1823–1883
A doctor, editor, and early photography pioneer, he wrote practical guides that helped spread the daguerreotype and collodion processes in the United States. His work captures the excitement of photography at the moment it was still a brand-new art and science.
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