ISO BASICS
PART 1
The third arm of the Exposure Triangle is the key to letting us choose the best aperture and/or shutter speed - and with very little compromise. Let us explain!
ISO - PART 2
PART 2
Now you have an understanding of how the ISO can help us set the best aperture or shutter speed for our creative purposes, are there any downsides? What else do we need to know?
ISO - REVISION
PART 3
As with our shutter speeds and apertures, it doesn't hurt to go over things again, just to make sure everything is understood - and now you know the three sides of the Exposure Triangle.