The Settings
Lab.
Reading about camera settings is fine. Feeling them is better. Every lab below is a virtual camera pointed at a fake scene — the fastest way to learn your camera is to move the dials, watch the photo change, and break things where it costs nothing.
The Exposure Triangle, Live
One scene. Three dials. This is the whole game: every move you make changes the brightness and a side effect at the same time.
The runner keeps crossing the frame so you can see what your shutter is doing. Watch the meter — the goal is always to land it near 0 while getting the look you want.
Every fix creates a new trade. Freeze the runner and the frame goes dark — so you open the aperture and lose the background, or raise ISO and gain grain. There is no free move. That's not a flaw; that's the craft.
Where's the Focus?
Aperture decides how deep the sharp zone is. Focus decides where it sits. Tap a subject to focus on it, then change the aperture and watch who else survives.
Focus on the person at f/2.8 — flower and mountains both melt. That's the whole recipe behind every portrait you've ever liked. Now focus the flower at f/2.8 and the person becomes the blur. Focus is a choice, not a fact.
White Balance
Light has a color — candles are orange, shade is blue. Your eyes auto-correct; the camera has to be told. Drag the light's temperature, then let Auto WB rescue it.
Shoot RAW and white balance stops being a gamble — it's a slider you move later, exactly like this one. JPEG bakes the color in.
Focal Length & Compression
Zooming doesn't just crop — it changes the relationship between subject and background. Watch the mountains behind the person as you go long.
Move the Flash
Where you put the light decides where the shadows fall — and the shadows are what give a face shape. Drag the flash anywhere around the subject and watch the shadow side, the nose shadow, and the wall behind.
- Shadows fall opposite the light. Obvious once you've dragged it around for ten seconds — and it's the whole foundation of lighting.
- Distance changes character. Close light wraps and falls off fast — bright subject, dark background. Far light is flatter and more even.
- Size changes softness. A bare flash is a tiny hard source: crisp, inky shadows. A softbox (or a bounce off a wall) makes the source big, and the shadow edges melt.
- Straight-on is the boring spot. Light from the camera's position fills every shadow — no shape, deer-in-headlights. Move it off-axis 45° and the face gets geometry back.
- From below = horror movie. Faces are lit from above our whole lives; flip it and the brain gets nervous. Great for campfires, bad for weddings.
This is the same physics I rig in live production, just smaller. Key light 45° up and off-axis, soften it if you can, and let the shadow side stay a little dark — that's not a flaw, that's the dimension.
What the Lab Teaches
Exposure is a budget
Light in = aperture × time × sensitivity. Spend more in one place, spend less somewhere else. The meter tells you if the books balance.
Every dial has a price tag
Wide aperture costs depth. Slow shutter costs sharpness. High ISO costs cleanliness. Pick which price you're happiest paying for this photo.
Focus is a decision
Same frame, same settings — moving the focus point tells a completely different story. Decide, don't default.
Trust instruments, not the screen
The meter and histogram in Lab 01 exist on your real camera too, and they don't care how bright the sun is behind you.
When these four feel obvious, you've outgrown the lab. The full Camera Pocket Guide has the recipes, the checklist, and the composition habits — this page is just the gym.