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Shanghai GP3 100 Reciprocity Failure Correction Tests

Reciprocity is the ability for a light sensitive material so respond equally to different brightness of light, so that a dim light for a long time, or a bright light for a short time will result in equal density of image forming on the film. Reciprocity Failure – technically known as the Schwarzschild effect –…

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About Vaughan

Vaughan enjoys analog b+w large format photography because he has a day job and is not required to make a living from it. Formats include 4×5, 5×7, 8×10 and the occasional 6½x8½ glass whole plates.

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