Photography is all about capturing light, and one of the most important settings that controls brightness is ISO sensitivity. Whether you’re photographing wildlife on a Kruger National Park safari, capturing a sunset over Table Mountain, or shooting a night scene in Johannesburg, understanding ISO sensitivity will help you achieve the right exposure.
In South Africa, lighting conditions can vary dramatically—from bright midday sun to dim indoor gatherings or star-filled Karoo skies. Knowing how to adjust ISO sensitivity allows you to adapt quickly and take sharp, well-exposed photos in any situation.
ISO Sensitivity, Aperture, and Shutter Speed: How Exposure Works
To understand ISO sensitivity, it’s important to look at how it works with aperture and shutter speed. These three elements form the exposure triangle, which determines how bright or dark your image appears.
Aperture controls how much light enters the lens, while shutter speed determines how long the camera sensor is exposed to