What is ISO…

ISO is a number that represents how sensitive your camera sensor is to light. The higher the ISO number, the higher your camera’s sensitivity, and the less light you need to take a picture. The trade-off is that higher ISOs can lead to degraded image quality and cause your photos to be grainy or “noisy.”

When might you use High ISO?

High ISO is generally well suited to low-light situations, especially when a fast shutter speed or a narrow lens aperture is essential to achieving a creative goal. For example, using a higher ISO setting for hand-held street photography at night allows one to use fast shutter speeds to create bright, sharp images.

My Own Photo using high ISO

This is an example of me using high ISO in a dark room setting.

As you can clearly see this picture has become very grainy. I used an ISO of 6400