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Remove dust spots from a photo

Clear sensor dust and specks from skies and other flat areas. Tiny marks on smooth backgrounds vanish without a trace.

The short version

Sensor dust shows up as soft dark blobs in the sky, most obvious at narrow apertures. They are tiny and sit on a smooth gradient, so a quick dab over each one removes it without leaving anything behind at all.

How to do it

  1. Drop the image in and zoom to 100%.

  2. Dab over each spot with a small brush.

  3. Remove them all in one pass.

Questions

How do I find every spot?
Zoom to 100% and work across the sky systematically. Dust is easiest to spot against smooth, bright areas.
Will the sky gradient stay smooth?
Yes. A smooth gradient is the easiest thing to continue, and these repairs are effectively invisible.
Spots over detailed areas?
Harder to see and harder to fix, but they are also far less noticeable there, so they usually need no attention.
Does this fix the dust itself?
Only in the photo. The sensor still needs cleaning; this saves the shots you already have.

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