This is for manual inversion of film negatives.*
Process:
- White balance against film base
- Crop as desired
- Invert the RGB curve
- For each of the R, G, and B curves, set them to the edge of clipping
- Then export as a TIF for further edits
Is there a way to speed up/automate step 4? The shadow and highlight clip preview on the histogram helps

*The negatives are camera scanned with a narrowband RGB light. Manual inversion gives better results than tools like Negative Lab Pro because such tools assume the scan used a wideband high CRI white LED light. NLP will support narrowband RGB, but that day will come after the standalone release.