Here's a brief summary of what the ISO means, where the term comes from, and what's the correct way to pronounce "ISO" (many photographers say it wrong).
A lot of photographers assume "ISO" is an acronym, and various online resources may even tell you that it stands for "International Standards Organization." But the truth is that it isn't an acronym and there is no organization by that name! Learn the whole story in this video and find out why it's pronounced "EYE-so", not "eye-es-oh".
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Video and audio production by Blake Carver: blakecarvercreative.com