Exposure Triangle Simulator

Learn photography from zero

Learn photography in this order: aperture, shutter speed, ISO, then the exposure triangle, then light, focus, and composition. Each step below is a short lesson with a live simulator, so you practice every idea the moment you learn it.

Updated October 2026

Step 1

The three pillars

Every photo is controlled by three settings. Learn them one at a time, in this order, and everything else gets easier.

Step 2

How they work together

  • The exposure triangle: stops, equivalent exposures, and the Sunny 16 rule. This is the page where it all clicks.
  • Camera modes: M, A/Av, S/Tv, and P. Learn when to let the camera help and when to take over.

Step 3

Reading light

Your camera measures light before every shot. These lessons teach you to read what it is telling you.

Step 4

Focus and files

Step 5

Composition

  • Rule of thirds: the composition guide for beginners, plus leading lines and framing.

Step 6

Practice by genre

Pick what you want to shoot. Each guide gives you starter settings and the mistakes to avoid.

Step 7

Your camera, button by button

Find your body and learn exactly which dial does what.

Step 8

Tools for the field

How to use this roadmap

Do steps 1 and 2 with the camera simulator open in another tab. Change each setting as you read about it. Steps 3 through 5 take one sitting each. Then pick one genre from step 6 and shoot it this week. Theory without shooting does not stick.

Get the free cheat sheet and keep it on your phone for your first month of shooting.

Frequently asked questions

Where should a complete beginner start with photography?

Start with aperture, shutter speed, and ISO, one at a time. Once each one makes sense alone, learn how they work together as the exposure triangle, then move to camera modes.

How long does it take to learn photography basics?

The exposure basics take a focused weekend. Getting comfortable enough to shoot in manual mode in real situations takes a few weeks of regular practice.

Should I learn on manual mode right away?

No. Learn what each setting does first, then use aperture priority and shutter priority while the camera handles the rest. Move to full manual once the exposure triangle clicks.

What is the best order to learn camera settings?

Aperture, then shutter speed, then ISO, then the exposure triangle that ties them together, then metering and focus, then composition. This page lays out that exact order.