High ISO vs Low ISO Explained
ISO controls your camera sensor’s sensitivity to light. A low ISO (such as 100 or 200) means less sensitivity and produces the cleanest image quality, while a high ISO (such as 1600, 3200, or higher) increases sensitivity, allowing you to shoot in low-light conditions. Choosing between high and low ISO directly affects exposure, image noise, and overall photo quality.
How Low ISO Affects Your Photos
Low ISO settings produce sharp, detailed images with minimal noise. They are best used in bright environments like daylight, outdoor scenes, or studio lighting. Low ISO is ideal when image quality is the top priority and you can rely on sufficient light or a tripod.
How High ISO Affects Your Photos
High ISO allows you to capture images in dark or fast-moving situations without using a flash or slow shutter speed. However, increasing ISO also introduces digital noise and grain, which can reduce detail. Modern cameras handle high ISO better, but excessive ISO can still impact image clarity.
When Should You Use High or Low ISO?
Use low ISO whenever light allows for the best quality. Switch to high ISO when shooting indoors, at night, or in situations where you need a faster shutter speed to avoid motion blur. Understanding the balance between high and low ISO helps you adapt quickly to changing light conditions.
