In this course, professional photographer Ian Plant demystifies ISO and explains how it really works inside the camera. Instead of treating ISO as a confusing technical setting, he breaks it down into practical, real-world concepts that photographers can actually use. You’ll learn how ISO affects exposure, noise, and dynamic range, why it behaves differently from shutter speed and aperture, and how to make confident ISO decisions in both bright and low-light situations. Ian also explores modern camera technologies like Auto ISO and dual gain sensors, showing how and when they can improve your results. You’ll learn how to use automation without giving up control, how sensor design impacts image quality, and why noise is often a reasonable trade-off in challenging light. By the end of the course, ISO will no longer feel intimidating or distracting. Instead, it will become a background tool that supports your creative vision while you focus on composition, timing, and storytelling.
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