Glossary

Developing the photo on your phone and computer

In lesson 9 you saw why to shoot RAW. Here you see what to do with it, using the controls you already have: those of Photos on iPhone, Google Photos on Android and Lightroom, on Mac and PC but also on your phone. They are the same fifteen sliders under different names: pick your app and the page speaks its language.

1Simulator

Develop the photo

The photo is a RAW file just opened: flat, a little dark, tilted by two degrees and with high-ISO grain. Move the sliders and watch the photo and the histogram; under each slider it says what it acts on. The button under the histogram shows the original for as long as you hold it: that is the comparison that counts. The square is AI-generated, made for this lesson.

Key points

  • Look at the histogram, not the screen: a phone screen is almost always too bright and misleads you.
  • Highlights and Shadows recover what is there; Black Point and Contrast set the character. The first ones first, then the others.
  • Set Warmth on something white or grey in the photo, never on the sky or on skin.
  • Sharpness, Definition and Noise Reduction are judged at 100%: at full screen they always look like too little, and you overdo them.
  • A RAW file forgives two or three stops of error, a JPEG almost nothing: it is lesson 9 seen from the other side.

Quick check

You raised the shadows and now the histogram touches the right edge. What do you do?
The arcade is too dark, but the sky is right as it is. Which slider do you move?
The photo came out blue: the white marble fountain has a blue cast. What do you do?