![]() ISO 12232:2006 is in turn based on ISO 5800:2001, which is the standard for color negative film that describes how chemically sensitive a film is to light, and therefore how fast you can make an exposure. Yes, you might expect that the International Organization for Standardization would abbreviate itself “IOS” and not “ISO,” but it doesn’t. ![]() The “ISO” when we talk about digital cameras is short for “ISO 12232:2006”, which is a technical standard established by the International Organization for Standardization. Well, in that case, things just got more complicated. ![]() The higher the ISO, the more sensitive your film and the less time it takes to expose it. Put simply, ISO is how sensitive to light film stock is. Digital ISO standard is measured by how sensitive your camera sensor is to light combined with how good your camera’s firmware is at interpreting the signal from the sensor
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