There are three settings that are used to create a proper photography exposure. They are Aperture, Shutter Speed, and ISO.
There are three basic settings on your DSLR that you need to consider when taking photographs. These are: Aperture, Shutter Speed, and ISO. We will briefly look at each of these settings.
Learning the three pillars of photography — namely how shutter speed, ISO, and aperture work — is crucial to becoming a great photographer. Once you’ve gotten the hang of those essentials though, you may wonder, “Okay, now what?”