What is the normal lifespan of a negative?
A. As negatives are manufactured on a less stable base material than traditional photographs, the life expectancy of the image is less than that of a photograph. Under reasonable room temperature conditions of 77 degrees Fahrenheit (25 degrees Celsius) or less with 20 to 50 percent relative humidity, and if stored in a photo-safe environment, negatives can be expected to last for 20 to 50 years before showing signs of degradation including discolouration or fading. The typical lifespan of a photograph under these given conditions is 50 to 100 years.
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