ISO is fundamentally the sensitivity at which your cameras sensor reacts to the light when you open the shutter.

ISO is measured in a scale (On standard digital cameras) called ISO. ISO is the number indicating a digital camera sensors sensitivity to light, the higher the sensitivity, the less light is needed to make an exposure.

But the problem when using high ISO is the picture tend to be grainy, thus lower ISO is perfect if you want crispy and clear image.

For me, taking picture in dim light with high ISO is better than using flash.

I’m still learning on how to get the perfect ISO level.
So I decided to test capture using ISO early this morning. It was 7 am and the street lights was still on!

So lets the photos do the talking :)