See the stops between key and fill

Switch Stops on in Settings, under DISPLAY. The REF card then adds REF LEVEL, NOW LEVEL and the difference in stops, with the ratio.

Step by step

1. Open Settings and, under DISPLAY, set Stops to ON.
2. Point at the key and tap REF.
3. Point at the fill. Read STOPS and the ratio on the card.

If that didn't work

The row appears only when both readings have a level, and never against a typed target. The level comes from the camera's exposure, so read both lights the same way, on the same gray card, for a fair ratio.

Last updated November 2, 2026