I've recently developed (for personal use) an advanced action for PS that deals with the inversion of color negatives from linear .tiff scans. This method is, as far as I am aware, the best yet, and much better than any methods I have tried yet, with results on par with pro lab examples from expensive scanners. It needs a bit more work, but the results will be worth it. I would like to know if there are people interested in purchasing my action when it would be ready for sharing. Features (currently working): One click color mask removal and inversion Automated initial CC Simple initial brightness adjustment Non-destructive layer based process Adjustable "brightness" control Adjustable color-neutral deep shadow recovery Preserves both shadow and highlight detail, favouring highlight detail Preserves film characteristics and saturation levels No film profile needed (*neg. base sampling required) No digital noise introduced in the process The process itself is designed to mimic RA-4 printing, in a very simple and intuitive way. I'm currently working on a way to finish off the inversion with a basic paper tone curve as well as more accurate preliminary CC.