Learning about exposure: Part 1 — ISO

When someone asks me about exposure, I tell them how ISO, Shutter Angle, and Fstop affect the light that reaches the sensor. In essence, they all do the same thing. Move one, and it either makes the image brighter or makes it darker and then I detail each one.

Today we are going o Learn about ISO, what it does, how it does it, and other things to consider when adjusting it.