Removing Sensor Dust spots from images

It is easy to miss a spot only to see it appear when you finally print the image. This approach reduces that risk
1. Add a Brightness & Contrast Layerto your image
2. Increase the contract and brightness about have way up the available range - the image will be garish - but the spots will now be easier to see
3. click on the background layer
4. Increase size to 100% and using the navigation go over the image removing the spots with the blend or clone tool as appropriate.
5. When done delete the Brightness and Contrast Layer.