Focus Mask

Wed, 15 Jul 2026 00:00:00 +0000

The Focus Mask highlights areas with strong edge detail. Use it in the full-window viewer or comparison view to check where a photo appears sharp.

Press F or use the focus-mask control. For a more detailed check, switch from the small thumbnail to the embedded JPG (J) or developed RAW preview (R) when supported.

Sharpness scoring calibrates the mask threshold for the current catalog. You can fine-tune it in RawCull -> Settings -> Focus:

Focus Mask on RawCull

Focus Mask