Get to Know the ISO Scale: ISO settings are like a scale from 100 to 6400.

• Lower numbers, like ISO 100, work best when it's bright outside.
• Higher numbers, such as ISO 1600 and above, are great when it’s dark or there isn’t much light.

Watch for Noise: Using a higher ISO can lead to something called noise in your pictures.

• If you shoot at ISO 1600, about 20% of your photos might have noticeable noise.
• At ISO 6400, more than 50% could be affected!

Sunny vs. Cloudy Days:

• On sunny days, use ISO 100.
• On cloudy days, switch to ISO 400.
• For early evenings or shooting indoors, go for ISO 800 or higher.