Spot metering single-tap
Tap once on the preview to meter a small area.
Where to find it
Viewfinder Metering Mode icon Metering Mode dropdown Single Spot
Summary
Single-tap spot metering: tap the live preview and the meter measures only the spot you tapped. Uses Android Camera2 auto-exposure regions to isolate a small area.
Detail
How it works
What it does
Switch to Single Spot mode, then tap anywhere on the live preview. The meter measures only the small area where you tapped, ignoring the rest of the scene. Useful for metering a specific face, a highlight, or a shadow in a complex scene.
Accuracy near edges
The AE region is a rectangle roughly 200x200 pixels on the preview surface, centered on where you tap. If you tap near the edge of the screen the region may be clipped by the preview bounds.
Pairing with zone system
In zone system work, use Single Spot mode to place each important brightness (shadow, midtone, highlight) on its own zone. Take a reading, see the zone, decide if it should move, adjust, and take the next reading.
Precision options
The spot reading uses the same precision selection (Fast, Professional, Auto-pro) as other modes. Switch precision in the Metering Mode options if you need more accuracy on very bright or very dark spots.