Quote:
Originally Posted by Crushellon
I have no idea what any of that means  but I'll give it a go, thanks.
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Use the PixelMath process. Set the RGB/K expression to $T+0.05. Click the "Create new image" button in Destination. Apply process to your master flat to generate a new version. If it still corrects too much try making the 0.05 bigger. If it doesn't correct enough make it smaller.
Cheers,
Rick.