We’ve just about all run into ugly, distracting noise in our photos at some point. The culprit here is high ISO. It makes the sensor more light-sensitive, and this can brighten dark photos, but it also produces noise. So take a look at how to work with ISO right.
ISO is one of the three sides of the exposure triangle, alongside aperture and shutter speed. By raising the ISO, you get a brighter picture even in dark conditions. But you’ll also get a picture that’s noisier. That’s why it’s important to find a suitable compromise. Meanwhile, appropriate ISO values vary depending on conditions, the camera you’re using, and how your pictures will be used.
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