Tag Archives: orthochromatic

a rose by any other name

Posted on January 14, 2022 by Robert

Toronto. One of the earliest ambitions of film makers was to expand their film’s sensitivity spectrum down to the reds. By the mid 1930s when Agfa-Ansco made this film, yellows, greens through near violet blues could be captured. Such a … Continue reading →

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it’s not easy being green

Posted on July 13, 2021 by Robert

Toronto. … sang Kermit the frog in his famous 1970 song on Sesame Street so many years ago. This apparently applied to a film called “Anken” too. The film was orthochromatic and, according to the ads, available in the most … Continue reading →

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PHSC News newsletter for June 2021

Posted on June 12, 2021 by Robert

Toronto. At right top of page 1 in the latest PHSC News newsletter is a subminiature film camera made by Mamiya in Japan for all you die-hard film fans. June of 2021 is well underway, and our editor, Sonja and her … Continue reading →

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red sails in the sunset

Posted on February 18, 2020 by Robert

Toronto. The energy of light depends on its wavelength. The higher (shorter) the wavelength, the more energetic the light. Visible light runs the gamut from reds to deep blues and purples. The beginnings of photography used media barely sensitive to … Continue reading →

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50 ways to lose a lover

Posted on June 8, 2019 by Robert

Toronto. In the 1950s the marketeers at the camera companies struggled to make their products stand out from the herd. No item was too tiny to be touted as the biggest improvement ever in photography. Some changes where indeed useful, … Continue reading →

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seeing red

Posted on March 5, 2019 by Robert

Toronto. Nope, this isn’t about anger issues – or bulls – but good old films and emulsions. All emulsions and sensors are sensitive to light. The energy of light varies with blue and shorter wave lengths having proportionally more energy. … Continue reading →

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