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Researching within the archives of the British photographic corporate Ilford Restricted, I lately got here throughout a curious memo pasted into an experiment guide via one of the crucial corporate’s chemists. Dated January 19 1923, it seems that as a small interruption within the web page: a realistic instruction that “in future, coating of any kind of emulsion must not be commenced or proceeded with during a fog”.
This transient directive was once my first clue to a connection between the photographic time period “fogging” and the noxious London fogs which, despite the fact that continuously related to the Nineteenth-century town, continued neatly into the Fifties.
The memo was once connected to a web page differently devoted to photographic fog. In chemical images, “fogging” describes an impact brought about via chemical contamination or mild leaks all the way through the processing of prints or negatives, generating a mist-like veil around the symbol.
Within the experiment guide, the memo registers the intrusion of London smog itself – weighted down with chemical pollution, no longer least sulphurous compounds – which reacted with the silver in photographic emulsions. The fog subsequently disrupted no longer most effective photographic manufacture, but additionally the taking and processing of pictures.
London’s fog actually fogged pictures with the yellowish hue of the capital’s infamous “pea-soupers”. This offered difficulties for early…
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Author : bq3anews
Publish date : 2026-01-24 23:05:00
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