ISO is a sensitivity set by International Organization for Standardization, it is a number measurement of the cameras sensitivity to light.

A low ISO shows a lower sensitivity and a worse ability to take in light and a high ISO shows a higher sensitivity and a higher ability to take in light.

This photo which took from the internet shows a good example between a low and a high ISO and the in-between range.

Here are some photos me and my group took when trying out multiple ISO’s to see the difference between the range.

The first photo is a super low ISO of 100, photo two and three are a in-between range of moderately low and moderately high and the forth photo is the highest ISO of the four and is around ISO 800.

We took our photos in a already dark place, this being underneath a set of stairs with the only light in the area being the light going through the cracks in-between the stairs.

This photo was taken in the schools assembly hall and was taken with a super high ISO which caused the light to ruin the photos balance and over expose it, “ruining” the image.