Several calibrations in a row, without restarting the app. After a measurement the camera stayed blurred, and the code on the Mac could no longer be scanned until the app was closed. The measurement defocuses the camera on purpose so it does not see the monitor's pixels, and never let go of it afterwards. Now the camera focuses again after every measurement, and after the light meter too. ALSO • Connecting without the QR code works. An address without a port is completed, and the example in the field shows the right port. • The session number of the last run is no longer filled in. When a session has expired, the app says so instead of asking about the Wi-Fi. The Mac app is updated too and is needed for calibration. New there: • External monitors running in HDR are recognised. In HDR the camera measures macOS's image processing instead of the monitor. The app now says before the start where to switch HDR off. • If you switch HDR back on later, the app takes the calibration off automatically and puts it back afterwards. A calibration profile otherwise makes HDR content look dull. • Profiles that name an HDR colour space instead of the monitor's real colours are no longer used. They made colours pale on some monitors. • The result shows the measured white point and the one from the factory profile side by side, and you can switch between them. • New expert mode: adjust colour temperature, tint, gamma and black level, with the three comparison pictures as a preview. • The menu bar responds again while the app is in front.

Redesigned, and the result is now on the iPhone too. After every calibration the iPhone shows a picture before and after, computed from your measurement, together with the verdict of the verification. The light meter shows the colour temperature large on a scale, and the start screen shows your last measurement. On the Mac a row of steps leads through the run, and a checklist remembers what is set up before the start. This version also fixes what was causing visible banding in smooth gradients. The tone curve used to be drawn exactly through every measured point. Those points come from two different kinds of patch, and on monitors whose channels do not add up cleanly to white the two disagree by several percent. That left a zigzag in the curve, and the zigzag became banding in the finished profile. The curve is now fitted between the measurements instead of through them. ALSO • The first connection after installing works straight away. Until now you had to cancel and reconnect after allowing local network access. • Dark patches get more light. The error in the shadows drops to a third. • The report shows how many of the 256 levels a profile costs. • New findings tell you when the monitor adjusted its own brightness during the run, and what to do about it. • A second drawing shows from the side how far the iPhone belongs from the screen. • All texts rewritten, shorter and clearer. The Mac app is updated too and is needed for calibration. Its measurement window now also lands correctly on a second monitor.

This version fixes what was causing visible banding in smooth gradients. The tone curve used to be drawn exactly through every measured point. Those points come from two different kinds of patch, and on monitors whose channels do not add up cleanly to white the two disagree by several percent. That left a zigzag in the curve, and the zigzag became banding in the finished profile. The curve is now fitted between the measurements instead of through them. ALSO • The first connection after installing works straight away. Until now you had to cancel and reconnect after allowing local network access. • Dark patches get more light. The error in the shadows drops to a third. • The report shows how many of the 256 levels a profile costs. • New findings tell you when the monitor adjusted its own brightness during the run, and what to do about it. • A second drawing shows from the side how far the iPhone belongs from the screen. • All texts rewritten, shorter and clearer. The Mac app is updated too and is needed for calibration. Its measurement window now also lands correctly on a second monitor.