ISO, which stands for International Organization for Standardization, is a fundamental setting in photography that determines a camera’s sensitivity to light. In digital photography, it refers to the sensor’s sensitivity, while in film photography, it represents the film’s sensitivity to light. Understanding and mastering ISO settings is crucial for photographers as it directly impacts the exposure and quality of their images. It allows photographers to adapt to different lighting conditions, control noise levels, and exercise creative control over their photographs. In this guide, we will delve into the intricacies of ISO in photography, helping you harness its power to enhance