How does Aperture, Shutter Speed and ISO work as a triangle 









Creating a correct Exposure by way of , Correct Aperture, Shutter Speed and the ISO, can be very confusing and a bit of a juggling act, simply because if you alter one part of the triangle you will need to alter one of the others 

So the aim of the Exposure Triangle to to get all three elements working together to get the effect that you are after, that could be you want motion blur, freeze the action, or a long Exposure (Those dreamy cotton wool seascapes of Waterfalls)

If you want to take a portrait of a loved one for example, use a large aperture which will blur out the background (Shallow Depth Of Field) (DOF) and your focus will be on your subject