Shutter Speed, Aperture & ISO - Easy System To Master All 3

I’ve never met a photo this doesn’t work on!

Once you have some basic understanding of shutter speed, aperture, and ISO in photography, this system makes it easy to set them correctly for every picture you take. It’s not always the fastest method, but I have yet to find a simpler process that guarantees the optimal settings for ANY subject in ambient light.


Of course you DO need to have some understanding of how the “big three” settings actually work, before you’ll be able to set them correctly (and/or quickly). That’s why I cover all the necessary background information in the first part of this video.

A quick recap:

Shutter speed is the amount of time your camera sensor is exposed to the light.

Aperture describes the size of the opening in your camera lens that lets in light.

ISO brightens your photo as well, but it doesn’t capture any light of its own, so boosting your ISO too high should be a last resort. (I know that the video compares ISO to sensitivity, but technically ISO is not sensitivity on a digital camera. If you really want to know more, this article will do the trick:

If you have any questions, please let me know below!

This is a companion discussion topic for the original entry at